APA
Robertie B., . (2002). Winning chess openings : 25 essential opening strategies. Brooklyn, NY: Cardoza Publishing.
Chicago
Robertie Bill, . 2002. Winning chess openings : 25 essential opening strategies. Brooklyn, NY: Cardoza Publishing.
Harvard
Robertie B., . (2002). Winning chess openings : 25 essential opening strategies. Brooklyn, NY: Cardoza Publishing.
MLA
Robertie Bill, . Winning chess openings : 25 essential opening strategies. Brooklyn, NY: Cardoza Publishing. 2002.