Roberto Ayala (Ayala, Roberto)

Spanish

• 
  LA Terrible Cruda, Evitala O Curatela/the Horrible Hang Over, Avoid It or Cure It
  by Roberto Ayala
  Softcover, Libra Editorial, ISBN 9706061312 (970-606-131-2)

English

• 
  Weed: Adventures of a Dope Smuggler
  by Jerry Kamstra, Roberto Ayala
  Softcover, Atlantic Books, Limited, ISBN 0915520621 (0-915520-62-1)