APA (7th ed.) Citation

Hefner, P. (1994). Can Nature Truly Be Our Friend? Zygon, 29(4), 507.

Chicago Style (17th ed.) Citation

Hefner, Philip. "Can Nature Truly Be Our Friend?" Zygon 29, no. 4 (1994): 507.

MLA (8th ed.) Citation

Hefner, Philip. "Can Nature Truly Be Our Friend?" Zygon, vol. 29, no. 4, 1994, p. 507.

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