APA (7th ed.) Citation

Gregson, M. M. (1912). The story of our trees in twenty-four lessons. The University press.

Chicago Style (17th ed.) Citation

Gregson, Margaret M. The Story of Our Trees in Twenty-four Lessons. Cambridge: The University press, 1912.

MLA (9th ed.) Citation

Gregson, Margaret M. The Story of Our Trees in Twenty-four Lessons. The University press, 1912.