APA Style

Maria, M. (2017). The Montessori Series Volume 21: Maria Montessori Speaks to Parents A Selection of Articles (1st edition). Amsterdam: Montessori-Pierson Publishing Company.

MLA Style

Maria, Montessori. "The Montessori Series Volume 21: Maria Montessori Speaks to Parents A Selection of Articles". 1st edition Amsterdam: Montessori-Pierson Publishing Company, 2017. Reference.