Coover, S. L. (1966). A first course in drawing and blueprint reading (3rd ed.). McGraw-Hill.
Chicago-referens (17:e uppl.)Coover, Shriver L. A First Course in Drawing and Blueprint Reading. 3rd ed. New York: McGraw-Hill, 1966.
MLA-referens (9:e uppl.)Coover, Shriver L. A First Course in Drawing and Blueprint Reading. 3rd ed. McGraw-Hill, 1966.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.