Petarnella, L., Silveira, A., & Machado, N. S. (2017). Environmental Education and Sustainability: Reflections in a Management Context. Universidade Nove de Julho.
استشهاد بنمط شيكاغوPetarnella, Leandro, Amélia Silveira, و Nelson Santos Machado. Environmental Education and Sustainability: Reflections in a Management Context. Universidade Nove de Julho, 2017.
MLA استشهادPetarnella, Leandro, Amélia Silveira, و Nelson Santos Machado. Environmental Education and Sustainability: Reflections in a Management Context. Universidade Nove de Julho, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.