APA (7th ed.) Citation

Hurd, P. (1961). Biological education in American Secondary Schools 1890-1960. American Institute of Biological Sciences.

Chicago Style (17th ed.) Citation

Hurd, Paul. Biological Education in American Secondary Schools 1890-1960. Washington: American Institute of Biological Sciences, 1961.

MLA (9th ed.) Citation

Hurd, Paul. Biological Education in American Secondary Schools 1890-1960. American Institute of Biological Sciences, 1961.

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