APA (7. basım) Alıntı

Penafiel, S. R. (1970). Net primary productivity and vegetation characteristics of a pinus-grass community.

Chicago Style (17. basım) Atıf

Penafiel, Samuel R. Net Primary Productivity and Vegetation Characteristics of a Pinus-grass Community. 1970.

MLA (9th ed.) Atıf

Penafiel, Samuel R. Net Primary Productivity and Vegetation Characteristics of a Pinus-grass Community. 1970.