APA-referens

Norman, A. G., & Pierre, W. H. (1953). Soil and fertilizers phosphorous in crop nutrition. Academic press.

Chicago-stil citat

Norman, A G., och W H. Pierre. Soil and Fertilizers Phosphorous in Crop Nutrition. Newyork: Academic press, 1953.

MLA-referens

Norman, A G., och W H. Pierre. Soil and Fertilizers Phosphorous in Crop Nutrition. Academic press, 1953.