Cita APA (7th ed.)

RIDPATH, I. (1982). Hamlyn encyclopedia of space. Hamlyn.

Cita Chicago (17th ed.)

RIDPATH, Ian. Hamlyn Encyclopedia of Space. London: Hamlyn, 1982.

Cita MLA (9th ed.)

RIDPATH, Ian. Hamlyn Encyclopedia of Space. Hamlyn, 1982.