APA-viite

Fry, R., & Hume, G. B. (1967). Manual of Commercial Correspondence. Issac Pitman.

Chicago-tyylinen lähdeviittaus

Fry, Roland, ja G Bayley Hume. Manual of Commercial Correspondence. London: Issac Pitman, 1967.

MLA-viite

Fry, Roland, ja G Bayley Hume. Manual of Commercial Correspondence. Issac Pitman, 1967.