Cita APA (7th ed.)

Barnett, L. (1954). The universe and Dr.Einstein (1a. ed.). A.Mentor Book.

Cita Chicago (17th ed.)

Barnett, Lincoln. The Universe and Dr.Einstein. 1a. ed. A.Mentor Book, 1954.

Cita MLA (9th ed.)

Barnett, Lincoln. The Universe and Dr.Einstein. 1a. ed. A.Mentor Book, 1954.