APA (7th ed.) Citation

Bourne, G. H. (1949). How your body works / by G.H. Bourne. Sigma.

Chicago Style (17th ed.) Citation

Bourne, Geoffrey H. How Your Body Works / by G.H. Bourne. Sigma, 1949.

MLA (9th ed.) Citation

Bourne, Geoffrey H. How Your Body Works / by G.H. Bourne. Sigma, 1949.

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