Cita APA (7th ed.)

Weaver, R. J. (1972). Plant growth substances in agriculture. W. H. Freeman.

Cita Chicago (17th ed.)

Weaver, Robert J. Plant Growth Substances in Agriculture. San Francisco: W. H. Freeman, 1972.

Cita MLA (9th ed.)

Weaver, Robert J. Plant Growth Substances in Agriculture. W. H. Freeman, 1972.