APA

Horowitz D., . (1966). Hemispheres north and south. Estados Unidos: John Hopkins Press.

Chicago

Horowitz David, . 1966. Hemispheres north and south. Estados Unidos: John Hopkins Press.

Harvard

Horowitz D., . (1966). Hemispheres north and south. Estados Unidos: John Hopkins Press.

MLA

Horowitz David, . Hemispheres north and south. Estados Unidos: John Hopkins Press. 1966.