Não informado. Extension circular. New Mexico College of Agriculture and Mechanic Arts.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Extension Circular. Santa Fe, NM: New Mexico College of Agriculture and Mechanic Arts.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Extension Circular. New Mexico College of Agriculture and Mechanic Arts.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.