APA (7th ed.) Citation

Spengler, J. J. (1972). Population economics; selected essays of Joseph J. Spengler. Duke University Press.

Chicago Style (17th ed.) Citation

Spengler, Joseph J. Population Economics; Selected Essays of Joseph J. Spengler. Durham, N.C.: Duke University Press, 1972.

MLA (9th ed.) Citation

Spengler, Joseph J. Population Economics; Selected Essays of Joseph J. Spengler. Duke University Press, 1972.

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