APA-referens

Fitzpatrick, E. A. (1990). An introduction to soil science. London: Longman Scientific and Technical.

Chicago-stil citat

Fitzpatrick, E. A. An Introduction to Soil Science. London: Longman Scientific and Technical, 1990.

MLA-referens

Fitzpatrick, E. A. An Introduction to Soil Science. London: Longman Scientific and Technical, 1990.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.