The pupil's workbook in geography of Wisconsin :
the project-problem method /
prepared and arranged by Lynn B. Stiles.

APA Citation

Stiles, L. B. (1921). The pupil's workbook in geography of Wisconsin: the project-problem method. Boston: Ginn.

MLA Citation

Stiles, Lynn B. The Pupil's Workbook In Geography of Wisconsin: the Project-problem Method. Boston: Ginn, 1921.

Warning: These citations may not always be complete (especially for serials).