APA (7th ed.) Citation

Beasley, D. (1979). Design illustration : sketching and shading techniques / David Beasley: Sketching and shading techniques. Heinemann Educational.

Chicago Style (17th ed.) Citation

Beasley, David. Design Illustration : Sketching and Shading Techniques / David Beasley: Sketching and Shading Techniques. London: Heinemann Educational, 1979.

MLA (9th ed.) Citation

Beasley, David. Design Illustration : Sketching and Shading Techniques / David Beasley: Sketching and Shading Techniques. Heinemann Educational, 1979.

Warning: These citations may not always be 100% accurate.