Fidler, J. H. (1955). The preservation of natural history specimens. Philosophical Library.
Dyfyniad Arddull ChicagoFidler, J. Havelock. The Preservation of Natural History Specimens. [New York]: Philosophical Library, 1955.
Dyfyniad MLAFidler, J. Havelock. The Preservation of Natural History Specimens. Philosophical Library, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.