Não informado. (2010). Research Studies of the State College of Washington. State College of Washington.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Research Studies of the State College of Washington. Pullman, Wash: State College of Washington, 2010.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Research Studies of the State College of Washington. State College of Washington, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.