Citazione Stile APA (7a Edizione)

Simpson, M. S. (1995). Environmental Awareness Activities for Librarians and Teachers: 20 Interdisciplinary Units for Use in Grades 2-8.

Citazione stile Chigago Style (17a edizione)

Simpson, Martha Seif. Environmental Awareness Activities for Librarians and Teachers: 20 Interdisciplinary Units for Use in Grades 2-8. 1995.

Citatione MLA (9a ed.)

Simpson, Martha Seif. Environmental Awareness Activities for Librarians and Teachers: 20 Interdisciplinary Units for Use in Grades 2-8. 1995.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.