APA (7th ed.) Citation

Petersen, W. (1997). Ethnicity counts. Transaction Publ.

Chicago Style (17th ed.) Citation

Petersen, William. Ethnicity Counts. New Brunswick [u.a.]: Transaction Publ, 1997.

MLA (9th ed.) Citation

Petersen, William. Ethnicity Counts. Transaction Publ, 1997.

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