APA (7th ed.) Citation

Wilmerding, J., & Wyeth, A. (1987). Andrew Wyeth: The Helga pictures. H.N. Abrams.

Chicago Style (17th ed.) Citation

Wilmerding, John, and Andrew Wyeth. Andrew Wyeth: The Helga Pictures. New York: H.N. Abrams, 1987.

MLA (8th ed.) Citation

Wilmerding, John, and Andrew Wyeth. Andrew Wyeth: The Helga Pictures. H.N. Abrams, 1987.