Cita APA (7a ed.)

Ayala, T. L. (2011). The World's negative spaces. UST Pub. House.

Cita Chicago Style (17a ed.)

Ayala, Tita Lacambra. The World's Negative Spaces. Manila: UST Pub. House, 2011.

Cita MLA (9a ed.)

Ayala, Tita Lacambra. The World's Negative Spaces. UST Pub. House, 2011.