APA Edition Citation

Delear, F. J. (1969). Igor Sikorsky : his three careers in aviation / by Frank J. Delear ; foreword by James H. Doolittle: His three careers in aviation. Dodd, Mead.

Chicago Edition Citation

Delear, Frank J. Igor Sikorsky : His Three Careers in Aviation / by Frank J. Delear ; Foreword by James H. Doolittle: His Three Careers in Aviation. New York: Dodd, Mead, 1969.

MLA Edition Citation

Delear, Frank J. Igor Sikorsky : His Three Careers in Aviation / by Frank J. Delear ; Foreword by James H. Doolittle: His Three Careers in Aviation. Dodd, Mead, 1969.