Παραπομπή σε μορφή APA (7η εκδ.)

Não informado. (1949). South Dakota Farm & Home Research. South Dakota Agricultural Experiment Station.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Não informado. South Dakota Farm & Home Research. Brookings, SD: South Dakota Agricultural Experiment Station, 1949.

Παραπομπή σε μορφή MLA (8th εκδ.)

Não informado. South Dakota Farm & Home Research. South Dakota Agricultural Experiment Station, 1949.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.