APA Citation

Berkeley, E. 1., & Berkeley, D. S. 1. (1963). John Clayton, pioneer of American botany. Chapel Hill: The University of North Carolina.

Chicago Style Citation

Berkeley, Edmund 1912-1993, and Dorothy Smith 1911-1994 Berkeley. John Clayton, Pioneer of American Botany. Chapel Hill: The University of North Carolina, 1963.

MLA Citation

Berkeley, Edmund 1912-1993, and Dorothy Smith 1911-1994 Berkeley. John Clayton, Pioneer of American Botany. Chapel Hill: The University of North Carolina, 1963.

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