Zangwill, W. I. [ca. 1969]. Nonlinear programming : a unified approach/ Willard I. Zangwill. In Prentice-Hall international series in management [Book]. Englewood Cliffs, NJ: Prentice-Hall.
ISO-690 (author-date, English)ZANGWILL, Willard I., 1969. Nonlinear programming : a unified approach/ Willard I. Zangwill. Englewood Cliffs, NJ: Prentice-Hall.
Modern Language Association 9th editionZangwill, W. I. „Nonlinear programming : a unified approach/ Willard I. Zangwill“. Prentice-Hall international series in management, book, Prentice-Hall, 1969.
Mohr Siebeck - Recht (Deutsch - Österreich)Zangwill, Willard I.: Nonlinear programming : a unified approach/ Willard I. Zangwill, Englewood Cliffs, NJ 1969.
Emerald - HarvardZangwill, W.I. (1969), Nonlinear programming : a unified approach/ Willard I. Zangwill, Prentice-Hall international series in management, Bd. , Prentice-Hall, Englewood Cliffs, NJ.