APA (7th ed.) Citation

Franzen, C. G. F. (1951). Improvement sheets for the teaching of high school subjects. W. C. Brown.

Chicago Style (17th ed.) Citation

Franzen, Carl Gustave Frederick. Improvement Sheets for the Teaching of High School Subjects. Dubuque: W. C. Brown, 1951.

MLA (9th ed.) Citation

Franzen, Carl Gustave Frederick. Improvement Sheets for the Teaching of High School Subjects. W. C. Brown, 1951.