APA (7th ed.) Citation

Guth, H. P.. (1975). The tools of English (2nd ed.). Webster/McGraw-Hill.

Chicago Style (17th ed.) Citation

Guth, Hans Paul. The Tools of English. 2nd ed. New York: Webster/McGraw-Hill, 1975.

MLA (9th ed.) Citation

Guth, Hans Paul. The Tools of English. 2nd ed. Webster/McGraw-Hill, 1975.