Citazione Stile APA (7a Edizione)

Spence, W. P., & Michael B. Atkins. (1980). Technical drafting: Metric design and communication. National Book Store.

Citazione stile Chigago Style (17a edizione)

Spence, William Perkins, e Michael B. Atkins. Technical Drafting: Metric Design and Communication. Manila: National Book Store, 1980.

Citatione MLA (9a ed.)

Spence, William Perkins, e Michael B. Atkins. Technical Drafting: Metric Design and Communication. National Book Store, 1980.