Não informado. (1952). Bulletin of Mechanical Engineering Education. Wynn Williams Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of Mechanical Engineering Education. Wreyham, Inglaterra: Wynn Williams Publishers, 1952.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of Mechanical Engineering Education. Wynn Williams Publishers, 1952.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.