APA (7th ed.) Citation

Ackins, R. (1980). Energy machines. Raintree Children Books.

Chicago Style (17th ed.) Citation

Ackins, Ralph. Energy Machines. Milwaukee, Wis.: Raintree Children Books, 1980.

MLA (9th ed.) Citation

Ackins, Ralph. Energy Machines. Raintree Children Books, 1980.

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