APA (7th ed.) Citation

Zenkert, D. (1995). An introduction to sandwich construction / Dan Zenkert. Engineering Materials Advisory Services.

Chicago Style (17th ed.) Citation

Zenkert, Dan. An Introduction to Sandwich Construction / Dan Zenkert. [Warley?]: Engineering Materials Advisory Services, 1995.

MLA (9th ed.) Citation

Zenkert, Dan. An Introduction to Sandwich Construction / Dan Zenkert. Engineering Materials Advisory Services, 1995.

Warning: These citations may not always be 100% accurate.