APA (7th ed.) Zitazioa
SMITH, H. M. (1922). Gaseous Exchange and physiological requirements for level and grade walking.
Chicago Style (17th ed.) Zitazioa
SMITH, Henry Monmouth. Gaseous Exchange and Physiological Requirements for Level and Grade Walking. Washington, 1922.
MLA (9th ed.) Zitazioa
SMITH, Henry Monmouth. Gaseous Exchange and Physiological Requirements for Level and Grade Walking. 1922.
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