APA (7th ed.) Citation

Santos, A. P. (1957). Etude in blue. Santos Cottage.

Chicago Style (17th ed.) Citation

Santos, Alfonso Pablo. Etude in Blue. Quezon City: Santos Cottage, 1957.

MLA (9th ed.) Citation

Santos, Alfonso Pablo. Etude in Blue. Santos Cottage, 1957.

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