Παραπομπή APA

Colin Clark. (1970). starvation or Plenty? Sticker and Walburg.

Παραπομπή Chicago Style

Colin Clark. Starvation or Plenty? London: Sticker and Walburg, 1970.

Παραπομπή MLA

Colin Clark. Starvation or Plenty? Sticker and Walburg, 1970.