APA (7th ed.) Citation

Pennock, C. (1979). Reading comprehension at four linguistic levels. International Reading Association.

Chicago Style (17th ed.) Citation

Pennock, Clifford. Reading Comprehension at Four Linguistic Levels. Newark, Del: International Reading Association, 1979.

MLA (9th ed.) Citation

Pennock, Clifford. Reading Comprehension at Four Linguistic Levels. International Reading Association, 1979.