Perfecto, F. E. A. (1987). Differences on the perceptual behavior of two age-group preschool children on their learning environment. University of the Philippines, College of Home Economics].
Chicago-referens (17:e uppl.)Perfecto, Francia Efiginia A. Differences on the Perceptual Behavior of Two Age-group Preschool Children on Their Learning Environment. [Quezon City: University of the Philippines, College of Home Economics], 1987.
MLA-referens (9:e uppl.)Perfecto, Francia Efiginia A. Differences on the Perceptual Behavior of Two Age-group Preschool Children on Their Learning Environment. University of the Philippines, College of Home Economics], 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.