APA-referens

Holden, V. . .., & Williams, J. . .. (1984). Crop genetic resources: Conservation and evaluation (1.). George Allen & Unwin Ltd.

Chicago-stil citat

Holden, V.H.W ., och J.T Williams. Crop Genetic Resources: Conservation and Evaluation. 1. London: George Allen & Unwin Ltd, 1984.

MLA-referens

Holden, V.H.W ., och J.T Williams. Crop Genetic Resources: Conservation and Evaluation. 1. George Allen & Unwin Ltd, 1984.