(1968). Creative teaching of science in the elementary school [by] Albert Piltz [and] Robert Sund. Foreword by E. Paul Torrance.
Citazione stile Chigago Style (17a edizione)Creative Teaching of Science in the Elementary School [by] Albert Piltz [and] Robert Sund. Foreword by E. Paul Torrance. 1968.
Citatione MLA (9a ed.)Creative Teaching of Science in the Elementary School [by] Albert Piltz [and] Robert Sund. Foreword by E. Paul Torrance. 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.