APA Edition Citation

Levens, A. S. (1965). Graphical methods in research. John Wiley.

Chicago Edition Citation

Levens, A. S. Graphical Methods in Research. John Wiley, 1965.

MLA Edition Citation

Levens, A. S. Graphical Methods in Research. John Wiley, 1965.

Warning: These citations may not always be 100% accurate.