APA (7e ed.) Bronvermelding

VERMA P S. (2022). SCIENCE FOR NINTH CLASS PART 3 BIOLOGY (2022.). S CHAND PUBLISHING.

Chicago (17e ed.) Bronvermelding

VERMA P S. SCIENCE FOR NINTH CLASS PART 3 BIOLOGY. 2022. NEW DELHI: S CHAND PUBLISHING, 2022.

MLA (9e ed.) Bronvermelding

VERMA P S. SCIENCE FOR NINTH CLASS PART 3 BIOLOGY. 2022. S CHAND PUBLISHING, 2022.