Haribon Foundation for the Conservation of Natural Resources, Arciaga, O., Romero, G. M., & Leon, A. P. d. (1995). Basic environmental course: For beginners : a guided training manual. Haribon Foundation for the Conservation of Natural Resources.
Citace podle Chicago (17th ed.)Haribon Foundation for the Conservation of Natural Resources, Orly Arciaga, Gene M. Romero, a Arnan P. de Leon. Basic Environmental Course: For Beginners : A Guided Training Manual. Manila: Haribon Foundation for the Conservation of Natural Resources, 1995.
Citace podle MLA (9th ed.)Haribon Foundation for the Conservation of Natural Resources, et al. Basic Environmental Course: For Beginners : A Guided Training Manual. Haribon Foundation for the Conservation of Natural Resources, 1995.
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