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Author

Donald Janssen

6 books found

Cover of Upside-Down Leadership

Upside-Down Leadership

Donald Janssen, DVM, Diplomate, ACZM · First published 2018

Cover of Giant pandas

Giant pandas

Susie Ellis, Hemin Zhang, Donald L. Janssen · First published 2006

Cover of Giant Pandas

Giant Pandas

David Wildt, Zhang Anju, Zhang Hemin, Donald Janssen · First published 2006

Cover of Resistance of concrete to freezing and thawing

Resistance of concrete to freezing and thawing

Donald Janssen, Mark B. Snyder · First published 1994

Placeholder cover for PCC mix design

PCC mix design

Donald J. Janssen · First published 1989

Placeholder cover for Bridge deck moisture measurement

Bridge deck moisture measurement

Donald J. Janssen · First published 1987