National Terra Cotta Society. (1927). Terra cotta: Standard construction (Rev. ed.). National terra cotta society.
Chicago Style aipamenaNational Terra Cotta Society. Terra Cotta: Standard Construction. Rev. ed. New York, N.Y.: National terra cotta society, 1927.
MLA aipamenaNational Terra Cotta Society. Terra Cotta: Standard Construction. Rev. ed. National terra cotta society, 1927.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.