Παραπομπή APA

Barker, A. N., & Gould, G. W. W. (1971). Spore research,1971. Academic Press.

Παραπομπή Chicago Style

Barker, A N., και G W Wolf Gould. Spore Research,1971. London: Academic Press, 1971.

Παραπομπή MLA

Barker, A N., και G W Wolf Gould. Spore Research,1971. Academic Press, 1971.