Lucas, Maria Rita D., Field Study 1: the learner's development and environment / Maria Rita D. Lucas. - Quezon City : Lorimar Publishing, Inc., 2010. - iix, 59 pages: tables, figures ; 28 cm. ISBN: 9716857160 Subjects--Topical Terms: Field study.Learner's development. Dewey Class. No.: 371.3 / L96