APA-viite

Lepp, N. W. (1981). Effect of heavy metal pollution on plants. Applied Science Publishers.

Chicago-tyylinen lähdeviittaus

Lepp, N W. Effect of Heavy Metal Pollution on Plants. London: Applied Science Publishers, 1981.

MLA-viite

Lepp, N W. Effect of Heavy Metal Pollution on Plants. Applied Science Publishers, 1981.