APA (7th ed.) Citation

Carpenter, N. (1925). Relative population densities and immigration policy of the United States.

Chicago Style (17th ed.) Citation

Carpenter, Niles. Relative Population Densities and Immigration Policy of the United States. Buffalo, 1925.

MLA (9th ed.) Citation

Carpenter, Niles. Relative Population Densities and Immigration Policy of the United States. 1925.

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