The new Barnes readers :
book four /
Herman Dressel, May Robbins, Ellis U. Graff.
APA Citation
Dressel, H., Graff, E. U., Robbins, M. (1921). The new Barnes readers: book four. Chicago: Laidlaw Bros..
MLA Citation
Dressel, Herman, 1865-, Ellis U. Graff, and May Robbins. The New Barnes Readers: Book Four. Chicago: Laidlaw Bros., 1921.
Warning: These citations may not always be complete (especially for serials).