Cita APA (7th ed.)

Croxall, H. E., & Smith, L. P. (1984). The fight for food: Factors limiting agricultural production. G. Allen & Unwin.

Cita Chicago (17th ed.)

Croxall, Harold E., i Lionel P. Smith. The Fight for Food: Factors Limiting Agricultural Production. London ; Boston: G. Allen & Unwin, 1984.

Cita MLA (8th ed.)

Croxall, Harold E., i Lionel P. Smith. The Fight for Food: Factors Limiting Agricultural Production. G. Allen & Unwin, 1984.