Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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