Cita APA (7th ed.)

Freeman, I., & Freeman, M. (1956). Fun with science. Random House.

Cita Chicago (17th ed.)

Freeman, Ira, i Mae Freeman. Fun with Science. [S.l.]: Random House, 1956.

Cita MLA (9th ed.)

Freeman, Ira, i Mae Freeman. Fun with Science. Random House, 1956.