Cita APA

Wheatley, P. (1971). The Pivot of the four quarters. [S.l.]: Aldine.

Citación estilo Chicago

Wheatley, Paul. The Pivot of the Four Quarters. [S.l.]: Aldine, 1971.

Cita MLA

Wheatley, Paul. The Pivot of the Four Quarters. [S.l.]: Aldine, 1971.