Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

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