Cita APA (7a ed.)

Purdy, C. P. (1954). Molybdenum occurrences of Washington. State Print. Plant.

Cita Chicago Style (17a ed.)

Purdy, C. Phillips. Molybdenum Occurrences of Washington. Olympia: State Print. Plant, 1954.

Cita MLA (8a ed.)

Purdy, C. Phillips. Molybdenum Occurrences of Washington. State Print. Plant, 1954.

Precaución: Estas citas no son 100% exactas.