APA (7th ed.) Citation

Smaragdus, Diadema monachorum. 13th c.

Chicago Style (17th ed.) Citation

Smaragdus, Diadema Monachorum. 13th C.

MLA (9th ed.) Citation

Smaragdus, Diadema Monachorum. 13th C.

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