Dyfyniad APA

Walls, C. (2019). Spring in action (Fifth edition.). Manning.

Dyfyniad Arddull Chicago

Walls, Craig. Spring in Action. Fifth edition. Shelter Island: Manning, 2019.

Dyfyniad MLA

Walls, Craig. Spring in Action. Fifth edition. Manning, 2019.

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