Cita APA

Schiffer, G. R., & Schiffer, G. R. (1979). A guide to engineering drawing (4. edition rev. and reset.). London, Sydney: Mechanical Engineering.

Citación estilo Chicago

Schiffer, G. R., y G. R. Schiffer. A Guide to Engineering Drawing. 4. edition rev. and reset. London, Sydney: Mechanical Engineering, 1979.

Cita MLA

Schiffer, G. R., y G. R. Schiffer. A Guide to Engineering Drawing. 4. edition rev. and reset. London, Sydney: Mechanical Engineering, 1979.