RYAN, J. (1960). Learning to swim is fun. The Ronald Press.
Lua i Stíl Chicago (17ú heag.)RYAN, Jack. Learning to Swim Is Fun. New York: The Ronald Press, 1960.
Lua MLA (9ú heag.)RYAN, Jack. Learning to Swim Is Fun. The Ronald Press, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.