1975 Pirc Defence G. Friedstein Chess Book

The French Defence Main Line Winawer - John Moles - 1975 Hardback Chess Book

Pirc Alert!: A Complete Defense Against 1. e4

The Pirc Defence - G.S. Botterill - 1976 Hardback Chess Book

chess book: The Ultimate Pirc by Nunn & McNab OOP

THE PIRC DEFENCE - CONTEMPORARY CHESS OPENINGS by Botterill & Keene 1973 HC DJ

chess book: The Pirc in Black And White by James Vigus

Soft-cover - The Pirc Defense by Fridshtein - Chess Strategy - Game Theory