1988 NHRA DRAG RULES Drag Racing's Official Competition Guidelines & Technical

1995 NHRA RULEBOOK Technical & Competition Guidelines - Drag Racing

1985 NHRA DRAG RULES Drag Racing's Official Competition Guidelines & Technical

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

1999 NHRA RULEBOOK Technical & Competition Guidelines - Drag Racing

1996 NHRA RULEBOOK Technical & Competition Guidelines - Drag Racing

1991 NHRA RULEBOOK Technical & Competition Guidelines - Drag Racing

1986 NHRA DRAG RULES Drag Racing's Official Competition Guidelines & Technical