Dyfyniad APA

Orr, J., Greig, R., Dott, E., McGeachy, A. H., Cruickshank, E. W. H., Davidson, S., & Aitken, R. S. (1940). The Wage-earner's Diet.

Dyfyniad Arddull Chicago

Orr, John, Robert Greig, Eric Dott, A. H. McGeachy, E. W. H. Cruickshank, Stanley Davidson, and Robert S. Aitken. The Wage-earner's Diet. 1940.

Dyfyniad MLA

Orr, John, et al. The Wage-earner's Diet. 1940.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.