APA (7th ed.) Citation

Spengler, J. J. (1971). Declining population growth revisited.

Chicago Style (17th ed.) Citation

Spengler, Joseph John. Declining Population Growth Revisited. [Chapel Hill] Carolina Population Center, 1971.

MLA (9th ed.) Citation

Spengler, Joseph John. Declining Population Growth Revisited. 1971.

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