APA (7th ed.) Citation

Stevenson, E., & Martin, P. (1944). I Knew Your Soldier. Saturday Evening Post, 217(18), 22.

Chicago Style (17th ed.) Citation

Stevenson, Eleanor, and Pete Martin. "I Knew Your Soldier." Saturday Evening Post 217, no. 18 (1944): 22.

MLA (9th ed.) Citation

Stevenson, Eleanor, and Pete Martin. "I Knew Your Soldier." Saturday Evening Post, vol. 217, no. 18, 1944, p. 22.