Gaya APA

Richardson, T, M., Nicodemus, W, R. (1981). Sanitation fo Foodservvoce Worker . New York: Van Nostrand Reinhold.

Gaya MLA

Richardson, Treva, M.., Nicodemus, Wade, R.. "Sanitation fo Foodservvoce Worker". New York: Van Nostrand Reinhold, 1981. BUKU.