एपीए उद्धरण

Levitt, I. M., & Cole, D. M. (1963). Exploring the secrets of space: Astronautics for the layman. Prentice-Hall.

शिकागो स्टाइल उद्धरण

Levitt, I. M., और Dandridge M. Cole. Exploring the Secrets of Space: Astronautics for the Layman. Englewood Cliffs, N.J.: Prentice-Hall, 1963.

एमएलए उद्धरण

Levitt, I. M., और Dandridge M. Cole. Exploring the Secrets of Space: Astronautics for the Layman. Prentice-Hall, 1963.