APA (7th ed.) Citation

Longworth, J. W., & Knopke, P. (1980). Wheat marketing and policy: Retrospect and prospect. Dept. of Agriculture, University of Queensland.

Chicago Style (17th ed.) Citation

Longworth, John W., and Philip Knopke. Wheat Marketing and Policy: Retrospect and Prospect. St. Lucia, Qld.: Dept. of Agriculture, University of Queensland, 1980.

MLA (8th ed.) Citation

Longworth, John W., and Philip Knopke. Wheat Marketing and Policy: Retrospect and Prospect. Dept. of Agriculture, University of Queensland, 1980.