APA (7th ed.) Citation

Riffert, G. R. (1935). Great Pyramid proof of God ([1st ed., 5th impression].). Covenant.

Chicago Style (17th ed.) Citation

Riffert, George R. Great Pyramid Proof of God. [1st ed., 5th impression]. London: Covenant, 1935.

MLA (9th ed.) Citation

Riffert, George R. Great Pyramid Proof of God. [1st ed., 5th impression]. Covenant, 1935.

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