Cita APA (7a ed.)

Gray, H. P. (1985). Free trade or protection?: A pragmatic analysis. MacMillan.

Cita Chicago Style (17a ed.)

Gray, H. Peter. Free Trade or Protection?: A Pragmatic Analysis. Basingstoke [etc.]: MacMillan, 1985.

Cita MLA (9a ed.)

Gray, H. Peter. Free Trade or Protection?: A Pragmatic Analysis. MacMillan, 1985.