APA Style

Maria, M. (2021). The Montessori Series Volume 17: The 1946 London Lectures (1st edition). Amsterdam: Montessori-Pierson Publishing Company.

MLA Style

Maria, Montessori. "The Montessori Series Volume 17: The 1946 London Lectures". 1st edition Amsterdam: Montessori-Pierson Publishing Company, 2021. Reference.