Aba, M. A. (1998). Hormonal interrelationships in reproduction of female llamas and alpacas. Swedish University of Agricultural Sciences.
Chicago-referens (17:e uppl.)Aba, Marcelo Alfredo. Hormonal Interrelationships in Reproduction of Female Llamas and Alpacas. Uppsala: Swedish University of Agricultural Sciences, 1998.
MLA-referens (8:e uppl.)Aba, Marcelo Alfredo. Hormonal Interrelationships in Reproduction of Female Llamas and Alpacas. Swedish University of Agricultural Sciences, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.