Cita APA (7th ed.)

Dennis, N. T., & Heppell, T. A. (1968). Vacuum system design. Chapman and Hall.

Cita Chicago (17th ed.)

Dennis, N. T., i T. A. Heppell. Vacuum System Design. Londres: Chapman and Hall, 1968.

Cita MLA (9th ed.)

Dennis, N. T., i T. A. Heppell. Vacuum System Design. Chapman and Hall, 1968.