Philippines. Department of Education, Culture and Sports, & Philippines. Environmenment Management Bureau. (1999). Environmental education guide. DECS].
Style de citation Chicago (17e éd.)Philippines. Department of Education, Culture and Sports, et Philippines. Environmenment Management Bureau. Environmental Education Guide. [Pasig City: DECS], 1999.
Style de citation MLA (9e éd.)Philippines. Department of Education, Culture and Sports, et Philippines. Environmenment Management Bureau. Environmental Education Guide. DECS], 1999.
Attention : ces citations peuvent ne pas être correctes à 100%.