Παραπομπή APA

Parkinson, A. C. (1966). Intermediate engineering drawing: :including a course in plane and solid geometry, and an introduction to design (Ed.5.). E L B S.

Παραπομπή Chicago Style

Parkinson, A C. Intermediate Engineering Drawing: :including a Course in Plane and Solid Geometry, and an Introduction to Design. Ed.5. London: E L B S, 1966.

Παραπομπή MLA

Parkinson, A C. Intermediate Engineering Drawing: :including a Course in Plane and Solid Geometry, and an Introduction to Design. Ed.5. E L B S, 1966.