Broadway, M. D., & Howland, M. (1991). Science Books for Young People: Who Writes Them?
Citazione stile Chigago Style (17a edizione)Broadway, Marsha D., e Malia Howland. Science Books for Young People: Who Writes Them? 1991.
Citatione MLA (9a ed.)Broadway, Marsha D., e Malia Howland. Science Books for Young People: Who Writes Them? 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.