APA
Richardson T. M., Wilkinson J. (., . (1969). Sanitation for food service workers. Chicago: Institutions Magazine.
Chicago
Richardson Treva M, Wilkinson Jule (ed), . 1969. Sanitation for food service workers. Chicago: Institutions Magazine.
Harvard
Richardson T. M., Wilkinson J. (., . (1969). Sanitation for food service workers. Chicago: Institutions Magazine.
MLA
Richardson Treva M, Wilkinson Jule (ed), . Sanitation for food service workers. Chicago: Institutions Magazine. 1969.