Bulletin - British Pteridological Society. (the Society, 2000)

Bulletin - British Pteridological Society. (the Society, 2000)

Bulletin - British Pteridological Society. (the Society, 2000)

Bulletin - British Pteridological Society. (the Society, 2000)

Bulletin - British Pteridological Society. (the Society, 2004)

Bulletin - British Pteridological Society. (the Society, 2005)

Bulletin - British Pteridological Society. (the Society, 2009)

Bulletin - British Pteridological Society. (the Society, 2010)

A flora of the liverworts and hornworts of New Zealand - Engel, John J., 1941 - (Missouri Botanical Garden Press, 2008)

A flora of the liverworts and hornworts of New Zealand - Engel, John J., 1941 - (Missouri Botanical Garden Press, 2008)

A flora of the liverworts and hornworts of New Zealand - Engel, John J., 1941 - (Missouri Botanical Garden Press, 2008)

A flora of the liverworts and hornworts of New Zealand - Engel, John J., 1941 - (Missouri Botanical Garden Press, 2008)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2007)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2013)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2013)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2014)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2014)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2015)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2015)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2015)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2016)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2016)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2017)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2017)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2017)

Hardy Fern Foundation quarterly - Hardy Fern Foundation. (The Hardy Fern Foundation, 2017)

In celebration of Dr. John J. Engel : a tribute to 40 years in bryology - Field Museum of Natural History. (Field Museum of Natural History, 2008)

Pteridologist - British Pteridological Society. (The Society, 2008)

Pteridologist - British Pteridological Society. (The Society, 2008)

Pteridologist - British Pteridological Society. (The Society, 2010)

Pteridologist - British Pteridological Society. (The Society, 2010)

Pteridologist - British Pteridological Society. (The Society, 2011)

Pteridologist - British Pteridological Society. (The Society, 2019)

Pteridologist - British Pteridological Society. (The Society, 2019)

Pteridologist - British Pteridological Society. (The Society, 2019)

Pteridologist - British Pteridological Society. (The Society, 2019)

Telopea: Journal of plant systematics - National Herbarium of New South Wales, (Royal Botanic Garden Sydney, 2018)

Telopea: Journal of plant systematics - National Herbarium of New South Wales, (Royal Botanic Garden Sydney, 2019)