APA aipamena

GROPIUS, W. (1968). Apollo In Democracy. McGraw-Hill.

Chicago Style aipamena

GROPIUS, Walter. Apollo In Democracy. McGraw-Hill, 1968.

MLA aipamena

GROPIUS, Walter. Apollo In Democracy. McGraw-Hill, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.