APA

Varsegi A., . (1990). Mainframe high productivity tools of the 90's. New York [u.a.]: Wiley.

Chicago

Varsegi Alex, . 1990. Mainframe high productivity tools of the 90's. New York [u.a.]: Wiley.

Harvard

Varsegi A., . (1990). Mainframe high productivity tools of the 90's. New York [u.a.]: Wiley.

MLA

Varsegi Alex, . Mainframe high productivity tools of the 90's. New York [u.a.]: Wiley. 1990.