APA (7e ed.) Bronvermelding

Lozada, M. A. M. D., & De Leon, S. Y. Beta-carotene content and quantity and quality of squash-banana catsup.

Chicago (17e ed.) Bronvermelding

Lozada, Ma. Aurora Melchora D., en Sonia Y. De Leon. Beta-carotene Content and Quantity and Quality of Squash-banana Catsup. 1992.

MLA (9e ed.) Bronvermelding

Lozada, Ma. Aurora Melchora D., en Sonia Y. De Leon. Beta-carotene Content and Quantity and Quality of Squash-banana Catsup.