Cita APA (7th ed.)

Gamow, G. (1958). Matter, earth, and sky. Prentice-Hall.

Cita Chicago (17th ed.)

Gamow, George. Matter, Earth, and Sky. Englewood Cliffs, N.J: Prentice-Hall, 1958.

Cita MLA (9th ed.)

Gamow, George. Matter, Earth, and Sky. Prentice-Hall, 1958.