Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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