Παραπομπή APA

Bell, P. R., & Wood Cock, C. L. F. (1971). Diversity of green plants (3.). English Language Book Society.

Παραπομπή Chicago Style

Bell, Peter R., και Christopher L F. Wood Cock. Diversity of Green Plants. 3. U S A: English Language Book Society, 1971.

Παραπομπή MLA

Bell, Peter R., και Christopher L F. Wood Cock. Diversity of Green Plants. 3. English Language Book Society, 1971.