Παραπομπή APA

Heilbron, J. L. (1999). The Sun in the church: Cathedrals as solar observatories. Cambridge, MA.: Harvard University Press.

Παραπομπή Chicago Style

Heilbron, J. L. The Sun in the Church: Cathedrals As Solar Observatories. Cambridge, MA.: Harvard University Press, 1999.

Παραπομπή MLA

Heilbron, J. L. The Sun in the Church: Cathedrals As Solar Observatories. Cambridge, MA.: Harvard University Press, 1999.

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