APA

Holmes N. J., Leake J. B., . (1985). Caminos a la ciencia. New York: Webster Division, McGraw-Hill.

Chicago

Holmes Neal J, Leake John B, . 1985. Caminos a la ciencia. New York: Webster Division, McGraw-Hill.

Harvard

Holmes N. J., Leake J. B., . (1985). Caminos a la ciencia. New York: Webster Division, McGraw-Hill.

MLA

Holmes Neal J, Leake John B, . Caminos a la ciencia. New York: Webster Division, McGraw-Hill. 1985.