APA-viite (7. p.)

WEILL ANN. (2019). THE WORLD'S MOST AMAZING NATIONAL PARKS (2018 Ed.). RAINTREE PUBLISHERS.

Chicago-viite (17. p.)

WEILL ANN. THE WORLD'S MOST AMAZING NATIONAL PARKS. 2018 Ed. CHICAGO: RAINTREE PUBLISHERS, 2019.

MLA-viite (9. p.)

WEILL ANN. THE WORLD'S MOST AMAZING NATIONAL PARKS. 2018 Ed. RAINTREE PUBLISHERS, 2019.