Descriptive notation.
This translation originally published: Portland Or. : Interstate Press, 1970. - Translation of: 'Match Botvinnik-Tal'. Riga : Latvitskoe gos 12d - vo, 1961.
Tal-Botvinnik : match for the World Chess Championship 1960 by Mikhail Tal. ISBN 027301479X. Published by R.H.M. Press. Publication and catalogue information, links to buy online and reader comments.