APA (7th ed.) Citation

Pinto, C. J. (2005). Riddles in stone: The secret architecture of Washington D.C. Antiquities Research Films.

Chicago Style (17th ed.) Citation

Pinto, Christian J. Riddles in Stone: The Secret Architecture of Washington D.C. [United States?]: Antiquities Research Films, 2005.

MLA (8th ed.) Citation

Pinto, Christian J. Riddles in Stone: The Secret Architecture of Washington D.C. Antiquities Research Films, 2005.

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