Cita APA (7a ed.)

Higgins, J. (1989). The eagle has landed. Pocket Books.

Cita Chicago Style (17a ed.)

Higgins, Jack. The Eagle Has Landed. New York [etc.]: Pocket Books, 1989.

Cita MLA (9a ed.)

Higgins, Jack. The Eagle Has Landed. Pocket Books, 1989.