APA (7e ed.) Bronvermelding

Haynes, B. R. 1. Secretarial problems, a work book on the collegiate level.

Chicago (17e ed.) Bronvermelding

Haynes, Benjamin Rudolph 1897. Secretarial Problems, a Work Book on the Collegiate Level. New York, Chicago, etc., The Gregg publishing company, 1931.

MLA (9e ed.) Bronvermelding

Haynes, Benjamin Rudolph 1897. Secretarial Problems, a Work Book on the Collegiate Level.