APA (7e ed.) Bronvermelding

DR THOMAS T. O & ARORA, N. ICSE UNDERSTANDING OUR ENVIRONMENTAL: A TEXTBOOK OF ENVIRONMENTAL STUDIES - 1 ( 2024-2025). ARYA BOOK DEPOT.

Chicago (17e ed.) Bronvermelding

DR THOMAS T. O & ARORA, NALINI. ICSE UNDERSTANDING OUR ENVIRONMENTAL: A TEXTBOOK OF ENVIRONMENTAL STUDIES - 1 ( 2024-2025). ARYA BOOK DEPOT.

MLA (9e ed.) Bronvermelding

DR THOMAS T. O & ARORA, NALINI. ICSE UNDERSTANDING OUR ENVIRONMENTAL: A TEXTBOOK OF ENVIRONMENTAL STUDIES - 1 ( 2024-2025). ARYA BOOK DEPOT.