APA (7th ed.) Citation

Beck, C. B. (1976). Origin and early evolution of angiosperms. Saint Joseph's University.

Chicago Style (17th ed.) Citation

Beck, Charles B. Origin and Early Evolution of Angiosperms. Saint Joseph's University, 1976.

MLA (8th ed.) Citation

Beck, Charles B. Origin and Early Evolution of Angiosperms. Saint Joseph's University, 1976.

Warning: These citations may not always be 100% accurate.