MLA

Whitt, Phillip. Beginning Photo Retouching and Restoration Using Gimp. Berkeley, CA: Apress L. P, 2023.

APA

Whitt, P. (2023). Beginning Photo Retouching and Restoration Using GIMP. Berkeley, CA: Apress L. P.

Chicago

Whitt, Phillip. Beginning Photo Retouching and Restoration Using GIMP. Berkeley, CA: Apress L. P, 2023.