APA

Roth J. A., Hanson R. R., . (1977). Health purifiers and their enemies: a study of the natural health movement in the United States with a comparison to its counterpart in Germany. New York: Prodist.

Chicago

Roth Julius A, Hanson Richard R, . 1977. Health purifiers and their enemies: a study of the natural health movement in the United States with a comparison to its counterpart in Germany. New York: Prodist.

Harvard

Roth J. A., Hanson R. R., . (1977). Health purifiers and their enemies: a study of the natural health movement in the United States with a comparison to its counterpart in Germany. New York: Prodist.

MLA

Roth Julius A, Hanson Richard R, . Health purifiers and their enemies: a study of the natural health movement in the United States with a comparison to its counterpart in Germany. New York: Prodist. 1977.