NHRA 1972 DRAG RULES BOOKLET NATIONAL HOT ROD ASSOCIATION VINTAGE RACE CAR FAIR

1972 National Hi-Performance Encyclopedia & Calender NHRA AHRA IHRA UHRA

1972 NHRA RULE BOOK DRAG RULES NATIONAL HOT ROD ASSOCIATION

1974 NHRA DRAG RULES - Drag Racing's Official Guidelines, National Hot Rod Assn

1973 NHRA DRAG RULES Drag Racing's Official Guidelines, National Hot Rod Assn.

1971 NHRA RULE BOOK DRAG RULES NATIONAL HOT ROD ASSOCIATION

1975 NHRA DRAG RULES Drag Racing's Official Guidelines, National Hot Rod Assn.

1971 NHRA DRAG RULES Drag Racing's Official Guidelines, National Hot Rod Assn.