APA

Henkin H., Merta M. & Staples J. (1971). The environment, the establishment and the law. Boston: Houghton Mifflin Company.

Chicago

Henkin Harmon, Merta Martin and Staples James. 1971. The environment, the establishment and the law. Boston: Houghton Mifflin Company.

Harvard

Henkin H., Merta M. and Staples J. (1971). The environment, the establishment and the law. Boston: Houghton Mifflin Company.

MLA

Henkin Harmon, Merta Martin and Staples James. The environment, the establishment and the law. Boston: Houghton Mifflin Company. 1971.