APA (7th ed.) Citation

Berry, E. W. (1923). Tree ancestors: A glimpse into the past. Williams & Wilkins.

Chicago Style (17th ed.) Citation

Berry, Edward Wilber. Tree Ancestors: A Glimpse into the Past. Baltimore: Williams & Wilkins, 1923.

MLA (9th ed.) Citation

Berry, Edward Wilber. Tree Ancestors: A Glimpse into the Past. Williams & Wilkins, 1923.

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