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 Douglass Price-Williams
 
 Ramírez, Manuel A.; Price-Williams, Douglass (1974): Cognitive styles in children: Two Mexican communities [Cognitive styles in children: Two Mexican communities]. R. interam. Psicol. 8(1-2), 93-101 (eng.). 
 
 Johnson, Dale L.; Johnson, Carmen A.; Price-Williams, Douglass (1967): The draw-a-man test and raven progressive matrices performance of guatemalan boys and ladino children [The draw-a-man test and raven progressive matrices performance of guatemalan boys and ladino children]. R. interam. Psicol. 1(2), 143-157 (eng.).