Lising, G. (1999). How green is your mind. Anvil Pub.
Cita Chicago (17th ed.)Lising, Gary. How Green Is Your Mind. Pasig City: Anvil Pub, 1999.
Cita MLA (9th ed.)Lising, Gary. How Green Is Your Mind. Anvil Pub, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.