APA aipamena

Schlaepfer, G. G. (2005). The Louisiana Purchase. Franklin Watts.

Chicago Style aipamena

Schlaepfer, Gloria G. The Louisiana Purchase. Franklin Watts, 2005.

MLA aipamena

Schlaepfer, Gloria G. The Louisiana Purchase. Franklin Watts, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.