Howell, Thomas R. · 7 obras en el catálogoObrasTThomas R. Howell's check-list of the birds of Nicaragua as oThomas R. Howell's check-list of the birds of Nicaragua as of 1993Regional RenaissanceCCompetition and Trade PolicyCompetition and Trade PolicyCConflict among NationsConflict among NationsSteel and the StateBreeding biology of the Egyptian plover, Pluvianus aegyptiusBBreeding biology of the gray gull, Larus modestusBreeding biology of the gray gull, Larus modestus
TThomas R. Howell's check-list of the birds of Nicaragua as oThomas R. Howell's check-list of the birds of Nicaragua as of 1993
