APA

Olle T. W., Macdonald I. G., Verrijn Stuart A. A., Hagelstein J., Sol H. G., Rolland C., Assche F. J. M. V. & Addison-Wesley (1942-1999). (1991). Information systems methodologies. Wokingham [i pozostałe]: Addison-Wesley Publishing Company.

Chicago

Olle T William, Macdonald Ian Grant, Verrijn Stuart Alexander A, Hagelstein Jacques, Sol Henk G, Rolland Colette, Assche Frans J M Van and Addison-Wesley (1942-1999). 1991. Information systems methodologies. Wokingham [i pozostałe]: Addison-Wesley Publishing Company.

Harvard

Olle T. W., Macdonald I. G., Verrijn Stuart A. A., Hagelstein J., Sol H. G., Rolland C., Assche F. J. M. V. and Addison-Wesley (1942-1999). (1991). Information systems methodologies. Wokingham [i pozostałe]: Addison-Wesley Publishing Company.

MLA

Olle T William, Macdonald Ian Grant, Verrijn Stuart Alexander A, Hagelstein Jacques, Sol Henk G, Rolland Colette, Assche Frans J M Van and Addison-Wesley (1942-1999). Information systems methodologies. Wokingham [i pozostałe]: Addison-Wesley Publishing Company. 1991.