Cita APA (7th ed.)

Southwell, P. H., & Rothwell, T. M. (1977). Report on analysis of output/input energy ratios of food production in Ontario. School of Engineering, University of Guelph.

Cita Chicago (17th ed.)

Southwell, P. H., i T. M. Rothwell. Report on Analysis of Output/input Energy Ratios of Food Production in Ontario. Guelph, Ont.: School of Engineering, University of Guelph, 1977.

Cita MLA (8th ed.)

Southwell, P. H., i T. M. Rothwell. Report on Analysis of Output/input Energy Ratios of Food Production in Ontario. School of Engineering, University of Guelph, 1977.