Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Cowan, T. M. (1970). Megalithic rings: Their design construction.- Washington, D.C.

Chicago Citation Edition Citation

Cowan, Thaddeus M. Megalithic Rings: Their Design Construction.- Washington, D.C. 1970.

MLA Citation Edition Citation

Cowan, Thaddeus M. Megalithic Rings: Their Design Construction.- Washington, D.C. 1970.