APA-Zitierstil (7. Ausg.)

Willoughby, D. M., & Monthei, S. L. (1998). Modular instruction for independent travel: For students who are blind or visually impaired ; preschool through high school. National Federation of the Blind.

Chicago-Zitierstil (17. Ausg.)

Willoughby, Doris M., und Sharon L. Monthei. Modular Instruction for Independent Travel: For Students Who Are Blind or Visually Impaired ; Preschool Through High School. Baltimore, MD: National Federation of the Blind, 1998.

MLA-Zitierstil (9. Ausg.)

Willoughby, Doris M., und Sharon L. Monthei. Modular Instruction for Independent Travel: For Students Who Are Blind or Visually Impaired ; Preschool Through High School. National Federation of the Blind, 1998.