APA (7th ed.) Citation

Hammershark Media. (2004). Twenty trucks: Can you name twenty trucks? I bet you can! Hammershark Media.

Chicago Style (17th ed.) Citation

Hammershark Media. Twenty Trucks: Can You Name Twenty Trucks? I Bet You Can! [S.l.]: Hammershark Media, 2004.

MLA (8th ed.) Citation

Hammershark Media. Twenty Trucks: Can You Name Twenty Trucks? I Bet You Can! Hammershark Media, 2004.

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