APA (7 ম সংস্করণ) উদ্ধৃতি

Brown, L. R. (1978). The twenty-ninth day: Accommodating human needs and numbers to the earth's resources. Norton.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Brown, Lester Russell. The Twenty-ninth Day: Accommodating Human Needs and Numbers to the Earth's Resources. New York: Norton, 1978.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Brown, Lester Russell. The Twenty-ninth Day: Accommodating Human Needs and Numbers to the Earth's Resources. Norton, 1978.