Dyfyniad APA

Walls, C. (2011). Spring in action (3rd ed.). Manning.

Dyfyniad Arddull Chicago

Walls, Craig. Spring in Action. 3rd ed. Shelter Island: Manning, 2011.

Dyfyniad MLA

Walls, Craig. Spring in Action. 3rd ed. Manning, 2011.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.