APA (7. basım) Alıntı

Siapno, F. E. (1998). Green brigade: A call to environmental action. Manila Bulletin.

Chicago Style (17. basım) Atıf

Siapno, Freriel E. "Green Brigade: A Call to Environmental Action." Manila Bulletin 1998.

MLA (9th ed.) Atıf

Siapno, Freriel E. "Green Brigade: A Call to Environmental Action." Manila Bulletin, 1998.