Philippines. Protected Areas and Wildlife Bureau. (1994). Compilation of policy issuances, 1994. The Bureau.
Chicago-referens (17:e uppl.)Philippines. Protected Areas and Wildlife Bureau. Compilation of Policy Issuances, 1994. Quezon City: The Bureau, 1994.
MLA-referens (9:e uppl.)Philippines. Protected Areas and Wildlife Bureau. Compilation of Policy Issuances, 1994. The Bureau, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.