APA (7th ed.) Citation

(2020). Overview of the Abo blood group system and heredity in humans. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Overview of the Abo Blood Group System and Heredity in Humans. Chicago, IL: Encyclopedia Britannica, 2020.

MLA (9th ed.) Citation

Overview of the Abo Blood Group System and Heredity in Humans. Encyclopedia Britannica, 2020.

Warning: These citations may not always be 100% accurate.