Παραπομπή APA

Codr, M., & Martonova, K. T. (1984). Space and Czechoslovakia.

Παραπομπή Chicago Style

Codr, Milan, και Katerina; Tr Martonova. Space and Czechoslovakia. Prague, Orbis Press Agency, 1984.

Παραπομπή MLA

Codr, Milan, και Katerina; Tr Martonova. Space and Czechoslovakia. 1984.