Dyfyniad APA

Johnson, C., & Cecil Johnson. (2006). Refrigeration: A Residential and Light Commercial Text & Lab Book. Clifton Park, NY: Thomson Delmar Learning.

Dyfyniad Arddull Chicago

Johnson, Cecil, và Cecil Johnson. Refrigeration: A Residential and Light Commercial Text & Lab Book. Clifton Park, NY: Thomson Delmar Learning, 2006.

Dyfyniad MLA

Johnson, Cecil, và Cecil Johnson. Refrigeration: A Residential and Light Commercial Text & Lab Book. Clifton Park, NY: Thomson Delmar Learning, 2006.

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