APA aipamena

Gottlieb, S. (2011). Washington: Portrait of a city. Lanham: Taylor Trade Pub.

Chicago Style aipamena

Gottlieb, Steven. Washington: Portrait of a City. Lanham: Taylor Trade Pub, 2011.

MLA aipamena

Gottlieb, Steven. Washington: Portrait of a City. Lanham: Taylor Trade Pub, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.