American Psychological Association 6th edition

Helfman, R. S. (1975). User’s guide to AFFIRMS : time-share computerized processing for fire danger rating /.

ISO-690 (author-date, English)

HELFMAN, Robert S., 1975. User’s guide to AFFIRMS : time-share computerized processing for fire danger rating /. . 1 Januar 1975.

Modern Language Association 9th edition

Helfman, R. S. User’s Guide to AFFIRMS : Time-Share Computerized Processing for Fire Danger Rating /. Januar 1975.

Mohr Siebeck - Recht (Deutsch - Österreich)

Helfman, Robert S.: User’s guide to AFFIRMS : time-share computerized processing for fire danger rating /, 1975,

Emerald - Harvard

Helfman, R.S. (1975), „User’s guide to AFFIRMS : time-share computerized processing for fire danger rating /“.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.