APA-referens (7:e uppl.)

Boniol, L. Z. (1997). Gardens of the world, our environment's sorrow. Manila Chronicle.

Chicago-referens (17:e uppl.)

Boniol, Leti Z. "Gardens of the World, Our Environment's Sorrow." Manila Chronicle 1997.

MLA-referens (9:e uppl.)

Boniol, Leti Z. "Gardens of the World, Our Environment's Sorrow." Manila Chronicle, 1997.