Haynes USA technical guide for Buick, Oldsmobile and Pontiac from 70 to 90

Covers versions:
Buick: Electra (70 - 84), Estate (70 - 90), Le Sabre (70 - 85), Limited (74 - 79)
Oldsmobile: Custom Cruiser (70 - 90), Delta 88 (70 - 85), Delta 88 Brougham (80 - 85), Delta 88 Royale (70 - 85), Ninety-eight Luxury (70 - 81), Ninety-eight Regency (73 - 81), Ninety-eight Regency Brougham (82 - 84)
Pontiac: Bonneville (70 - 81), Bonneville Brougham (70 - 81), Catalina (70- 81), Grandville (70 - 75), Parisienne (83 - 86) Manual in English