APA način citiranja

Koebner, R., & Schmidt, H. D. (1965). Imperialsim: The story and significance of a political word 1840-1960.

Čikaški stil citiranja

Koebner, Richard, i Helmut Dan Schmidt. Imperialsim: The Story and Significance of a Political Word 1840-1960. 1965.

MLA način citiranja

Koebner, Richard, i Helmut Dan Schmidt. Imperialsim: The Story and Significance of a Political Word 1840-1960. 1965.