Cita APA (7th ed.)

Dennis , N. T. M., & By , H. .. (1968). Vacuum systems design. Chapman & Hall.

Cita Chicago (17th ed.)

Dennis , N. T. M., i Heppel By. Vacuum Systems Design. London: Chapman & Hall, 1968.

Cita MLA (9th ed.)

Dennis , N. T. M., i Heppel By. Vacuum Systems Design. Chapman & Hall, 1968.