- Woodward Governor Company controls in a 1921 S. Morgan Smith Company catalog..
- GOVERNORS AND GOVERNING MECHANISM HISTORY.
- Woodward...At the Heart of the Energy Control System Since 1870.
- WGC ANNUAL REPORT 1987
- WGC 1987. 2
- WGC CTL NOVEMBER 1985
- GOVERNORS AND GOVERNING MECHANISM HISTORY.
- 19
- WGC PMC CTL MAY 1989
- WGC PMC CTL SECOND QUARTER 1999
- PREFACE.
- WGCPMC CTL OCTOBER 1993
- CONTENTS 2.
- ERRATUM.
- Page 1.