@book{bhlitem25251, title = {Cement }, volume = {no.12 (1929)}, copyright = {In copyright. Digitized with the permission of the rights holder.}, url = {https://www.biodiversitylibrary.org/item/25251}, note = {https://www.biodiversitylibrary.org/bibliography/5318}, publisher = {Chicago, Field Museum of Natural History, 1929}, author = {Nichols, Henry W. (Henry Windsor), and Field Museum of Natural History. Department of Geology.}, year = {1929}, pages = {32}, keywords = {Cement|Cement (bouwkunde)}, }