APA
(1979). Technical drawings; principles of carrying out, principles for preparation drawing for sides. [s.l.]: [s.n.].
Chicago
1979. Technical drawings; principles of carrying out, principles for preparation drawing for sides. [s.l.]: [s.n.].
Harvard
(1979). Technical drawings; principles of carrying out, principles for preparation drawing for sides. [s.l.]: [s.n.].
MLA
Technical drawings; principles of carrying out, principles for preparation drawing for sides. [s.l.]: [s.n.]. 1979.