Graves, M. F., Boettcher, J. A., & Ryder, R. J. (1979). Easy reading: Book series and periodicals for less able readers. International Reading Association.
Chicago-Zitierstil (17. Ausg.)Graves, Michael F., Judith A. Boettcher, und Randall J. Ryder. Easy Reading: Book Series and Periodicals for Less Able Readers. Newark, Del: International Reading Association, 1979.
MLA-Zitierstil (9. Ausg.)Graves, Michael F., et al. Easy Reading: Book Series and Periodicals for Less Able Readers. International Reading Association, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.