Cita APA (7th ed.)

Weir, W. W. (1936). Soil science: Its, principles and practice. J. B. Lippincott.

Cita Chicago (17th ed.)

Weir, Wilbert Walter. Soil Science: Its, Principles and Practice. Chicago: J. B. Lippincott, 1936.

Cita MLA (9th ed.)

Weir, Wilbert Walter. Soil Science: Its, Principles and Practice. J. B. Lippincott, 1936.