APA (7th ed.) Citation

Cronin, H. S. (1967). Codex purpureus petropolitanus Texts and studies.

Chicago Style (17th ed.) Citation

Cronin, Harry S. "Codex Purpureus Petropolitanus." Texts and Studies 1967.

MLA (9th ed.) Citation

Cronin, Harry S. "Codex Purpureus Petropolitanus." Texts and Studies, 1967.

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