Chess Results, 1968–1970 - McFarland

Chess Results, 1968–1970 A Comprehensive Record with 854 Tournament Crosstables and 161 Match Scores, with Sources Gino Di Felice 978-0-7864-7574-2

On The Prowl: Bruce Kastle's Cool 1971 Mercury Cougar XR7 Stocker

7 TROPOSPHERIC CHEMICAL CYCLES Global Tropospheric Chemistry: A

Castlebar 1969 sources

Tournament Chess Books - Arena

The Boston Globe from Boston, Massachusetts

Chess (Program) - Chessprogramming wiki

The chess games of Vasily Smyslov

Chess Results, 1968-1970: A Comprehensive Record with 854

Bobby Fischer 1970: The forgotten simul