APA (7th ed.) Citation

Happ, H. . . . . . . H. (1973). Gabriel Kron and systems theory. Union College Press.

Chicago Style (17th ed.) Citation

Happ, H H. Gabriel Kron and Systems Theory. Schenectady, N.Y: Union College Press, 1973.

MLA (9th ed.) Citation

Happ, H H. Gabriel Kron and Systems Theory. Union College Press, 1973.

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