APA (7th ed.) Citation

Proctor, D. (1968). An unusual French Astrolabe, dated c.1702.

Chicago Style (17th ed.) Citation

Proctor, David. An Unusual French Astrolabe, Dated C.1702. 1968.

MLA (9th ed.) Citation

Proctor, David. An Unusual French Astrolabe, Dated C.1702. 1968.

Warning: These citations may not always be 100% accurate.