Cita APA (7th ed.)
Stevens, W. E., & Smith, S. P. (1937). Roentgenological examination of the female urethra.
Cita Chicago (17th ed.)
Stevens, William Emerson, i Seymour P. Smith. Roentgenological Examination of the Female Urethra. [Baltimore], 1937.
Cita MLA (9th ed.)
Stevens, William Emerson, i Seymour P. Smith. Roentgenological Examination of the Female Urethra. 1937.
Atenció: Aquestes cites poden no estar 100% correctes.