Snyder, Richard L.; Food And Agriculture Organization: Environment And Natural Resources Service; De Melo-Abreu, J. Paulo Food & Agriculture Organization of the United Nations (FAO) 2010 Pehmeäkantinen kirja
Dymond, J R (John Richardson) 1887; Snyder, L L (Lester Lynne) 1894-; Logier, E B S (Eugene Bernard Shel Creative Media Partners, LLC 2021 Pehmeäkantinen kirja