APA-referens (7:e uppl.)

PARKER VIC. (2019). LET'S THINK ABOUT THE SUSTAINABLE ENERGY (2018 Ed.). RAINTREE PUBLISHERS.

Chicago-referens (17:e uppl.)

PARKER VIC. LET'S THINK ABOUT THE SUSTAINABLE ENERGY. 2018 Ed. CHICAGO: RAINTREE PUBLISHERS, 2019.

MLA-referens (9:e uppl.)

PARKER VIC. LET'S THINK ABOUT THE SUSTAINABLE ENERGY. 2018 Ed. RAINTREE PUBLISHERS, 2019.