Viado, J. (1968). The natural resources position of the Philippines. [publisher not identified].
Style de citation Chicago (17e éd.)Viado, Jose. The Natural Resources Position of the Philippines. [place of publication not identified]: [publisher not identified], 1968.
Style de citation MLA (9e éd.)Viado, Jose. The Natural Resources Position of the Philippines. [publisher not identified], 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.