Παραπομπή APA

Milton, J. H., & Leach, R. M. (1980). Marine steam boilers (Ed.4.). Butterworths.

Παραπομπή Chicago Style

Milton, James H., και Roy M. Leach. Marine Steam Boilers. Ed.4. London: Butterworths, 1980.

Παραπομπή MLA

Milton, James H., και Roy M. Leach. Marine Steam Boilers. Ed.4. Butterworths, 1980.