APA (7th ed.) Citation

Harper, F. J. (1987). Trade unions of the world. Longman.

Chicago Style (17th ed.) Citation

Harper, F. John. Trade Unions of the World. Burnt Mill, Harlow, Essex, U.K.: Longman, 1987.

MLA (9th ed.) Citation

Harper, F. John. Trade Unions of the World. Longman, 1987.