Stern, Marc J., Powell, Robert B., and Frensley, B. Troy. Environmental education, age, race, and socioeconomic class: An exploration of differential impacts of field trips on adolescent youth in the United States. Retrieved from https://par.nsf.gov/biblio/10345504. Environmental Education Research 28.2 Web. doi:10.1080/13504622.2021.1990865.

Stern, Marc J., Powell, Robert B., & Frensley, B. Troy. Environmental education, age, race, and socioeconomic class: An exploration of differential impacts of field trips on adolescent youth in the United States. Environmental Education Research, 28 (2). Retrieved from https://par.nsf.gov/biblio/10345504. https://doi.org/10.1080/13504622.2021.1990865

Stern, Marc J., Powell, Robert B., and Frensley, B. Troy. "Environmental education, age, race, and socioeconomic class: An exploration of differential impacts of field trips on adolescent youth in the United States". Environmental Education Research 28 (2). Country unknown/Code not available. https://doi.org/10.1080/13504622.2021.1990865. https://par.nsf.gov/biblio/10345504.

@article{osti_10345504,
place = {Country unknown/Code not available}, title = {Environmental education, age, race, and socioeconomic class: An exploration of differential impacts of field trips on adolescent youth in the United States}, url = {https://par.nsf.gov/biblio/10345504}, DOI = {10.1080/13504622.2021.1990865}, abstractNote = {}, journal = {Environmental Education Research}, volume = {28}, number = {2}, author = {Stern, Marc J. and Powell, Robert B. and Frensley, B. Troy}, }