Gambril, D. L. (1969). Swimming. Goodyear Pub.
Lua i Stíl Chicago (17ú heag.)Gambril, Donald L. Swimming. Pacific Palisades, Calif: Goodyear Pub, 1969.
Lua MLA (9ú heag.)Gambril, Donald L. Swimming. Goodyear Pub, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.