APA-viite

Bock, B., & Bock, K. (1977). soviet bloc merchant ships. Janes publishing Company.

Chicago-tyylinen lähdeviittaus

Bock, Bruno, ja Klaus Bock. Soviet Bloc Merchant Ships. London: Janes publishing Company, 1977.

MLA-viite

Bock, Bruno, ja Klaus Bock. Soviet Bloc Merchant Ships. Janes publishing Company, 1977.