| Title | Author / Editor | Place | Publisher | Year |
| Animal Life | B. Lindsay | New York | D. Appleton & Co. | 1909 |
| Artificial Insemination in Farm Animals | Milad Manafi | Croatia (Europe) | InTech | 2011 |
| Curious Creatures in Zoology | John Ashton | London | John C. Nimmo | 1890 |
| Elementary zoology | Vernon L. Kellogg | New York | Henry Holt & Co. | 1902 |
| Elephant Seals: Population Ecology, Behavior, and Physiology | B. J. Le Beouf & R. M. Laws | California | University of California Press | 1994 |
| Extinct and vanishing mammals of the Old World | Francis Harper | New York | American Committee for Wild Life Protection | 1945 |
| Extinct and vanishing mammals of the Old World | Francis Harper | New York | American Committee for International Wild Life Protection | 1945 |
| Gliding Mammals: Taxonomy of Living and Extinct Species | S.M Jackson & R.W. Thorington | United State | Smithsonian Institution Scholarly Press | 2012 |
| The Life of Crustacea | William Thomas Calman | London | Methuen & Co. | 1911 |
| Zoology | Maria-Dolores Garcia | Croatia (Europe) | InTech | 2012 |
