APA (7e ed.) Bronvermelding

Skarstrom, W. (1921). Gymnastic teaching ([2d. ed.].). American physical education association.

Chicago (17e ed.) Bronvermelding

Skarstrom, William. Gymnastic Teaching. [2d. ed.]. Springfield, Mass.: American physical education association, 1921.

MLA (8e ed.) Bronvermelding

Skarstrom, William. Gymnastic Teaching. [2d. ed.]. American physical education association, 1921.