Cita APA (7a ed.)

Knightley, P., Rennert, U., & Spiel, C. (1989). Kim Philby: Geheimagent. List.

Cita Chicago Style (17a ed.)

Knightley, Phillip, Udo Rennert, y Christian Spiel. Kim Philby: Geheimagent. München: List, 1989.

Cita MLA (9a ed.)

Knightley, Phillip, et al. Kim Philby: Geheimagent. List, 1989.