Cita APA (7th ed.)

Roth, G. (1962). The system of minor planets. Van Nostrand.

Cita Chicago (17th ed.)

Roth, G.D. The System of Minor Planets. Princeton, New Jersey: Van Nostrand, 1962.

Cita MLA (9th ed.)

Roth, G.D. The System of Minor Planets. Van Nostrand, 1962.