Bulletin of the British Museum (Natural History) Botany - British Museum (Natural History) (The Museum, 1951)

Bulletin of the British Museum (Natural History) Botany - British Museum (Natural History) (The Museum, 1951)

Stuttgarter Beiträge zur Naturkunde Serie A Biologie - Staatliches Museum für Naturkunde in Stuttgart. (Staatliches Museum für Naturkunde, 1995)