APA

Hohmann Herald,, . (1994). Precautionary legal duties and principles of modern international environmental law : The precautionary principle; international environmental law between exploitations and protection. London: Graham & Trotman.

Chicago

Hohmann Herald,, . 1994. Precautionary legal duties and principles of modern international environmental law : The precautionary principle; international environmental law between exploitations and protection. London: Graham & Trotman.

Harvard

Hohmann Herald,, . (1994). Precautionary legal duties and principles of modern international environmental law : The precautionary principle; international environmental law between exploitations and protection. London: Graham & Trotman.

MLA

Hohmann Herald,, . Precautionary legal duties and principles of modern international environmental law : The precautionary principle; international environmental law between exploitations and protection. London: Graham & Trotman. 1994.