APA (7e ed.) Bronvermelding

Andrews, H. N., & Schutte, A. (1947). Ancient plants, and the world they lived in. Comstock Pub. Co.

Chicago (17e ed.) Bronvermelding

Andrews, Henry Nathaniel, en Anna Schutte. Ancient Plants, and the World They Lived in. Ithaca, N.Y: Comstock Pub. Co, 1947.

MLA (9e ed.) Bronvermelding

Andrews, Henry Nathaniel, en Anna Schutte. Ancient Plants, and the World They Lived in. Comstock Pub. Co, 1947.