• 8 Private investigators
• 7 History
• 6 Belascoarán Shayne, Héctor (Fictitious character)
• 2 Police chiefs
• 1 Anarchists
• 1 Criminal investigation
• 1 Detective and mystery stories
• 1 Journalists
• 1 Murder
• 1 Novelas policiaca o policial
• 1 Novelists
• 1 Riva Palacio, Vicente, 1832-1896
• 1 Science fiction, American
• 1 Science fiction, Spanish
• 1 Syndicalism

• 4 Marcos, subcomandante
• 1 Baumrucker, Peter Gerhard
• 1 Henson, Beth
• 1 James W. Jones Collection of Gay and Lesbian Literature
• 1 Neuman, William I

• 12 Spanish
• 8 English
• 1 German

• 8 Mexico City
• 7 Mexico City (Mexico)
• 4 Chiapas (Mexico)
• 3 México
• 1 Mexican-American Border Region
• 1 México (Ciudad)
• 1 México (México)

Limit year range