Παραπομπή APA

Welling, M. S. (1985). German-English dictionary of plastics technology. Pentech Press.

Παραπομπή Chicago Style

Welling, M. S. German-English Dictionary of Plastics Technology. London: Pentech Press, 1985.

Παραπομπή MLA

Welling, M. S. German-English Dictionary of Plastics Technology. Pentech Press, 1985.