APA (7th ed.) Citation

Guilford, J. P., & Lacey, J. I. (1947). Printed classification tests. U.S. Govt. Print. Off..

Chicago Style (17th ed.) Citation

Guilford, J. P., and John I. Lacey. Printed Classification Tests. Washington: U.S. Govt. Print. Off., 1947.

MLA (9th ed.) Citation

Guilford, J. P., and John I. Lacey. Printed Classification Tests. U.S. Govt. Print. Off., 1947.