Zimmer, A., & Zimmer, F. (1978). Visual literacy in communication: Designing for development. Hulton [for] the International Institution for Adult Literacy Methods.

Zimmer, Anne, and Fred Zimmer. Visual Literacy in Communication: Designing for Development. Amersham: Hulton [for] the International Institution for Adult Literacy Methods, 1978.

Zimmer, Anne, and Fred Zimmer. Visual Literacy in Communication: Designing for Development. Hulton [for] the International Institution for Adult Literacy Methods, 1978.