Não informado. (1953). Southwestern naturalist. Southwestern Association of Naturalist.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Southwestern Naturalist. Lubbock, Tex: Southwestern Association of Naturalist, 1953.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Southwestern Naturalist. Southwestern Association of Naturalist, 1953.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.