Brown, W. R. (1977). Earth science: A search for understanding: teacher's annotated edition. J.B. Lippincott.
Citazione stile Chigago Style (17a edizione)Brown, Walter R. Earth Science: A Search for Understanding: Teacher's Annotated Edition. J.B. Lippincott, 1977.
Citatione MLA (9a ed.)Brown, Walter R. Earth Science: A Search for Understanding: Teacher's Annotated Edition. J.B. Lippincott, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.