Castro, P. P. (1984). River models: Physical vs. mathematical. National Hydraulic Research Center, U.P. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Castro, Peter P.M. River Models: Physical Vs. Mathematical. Quezon City: National Hydraulic Research Center, U.P. College of Engineering, 1984.
Lua MLA (9ú heag.)Castro, Peter P.M. River Models: Physical Vs. Mathematical. National Hydraulic Research Center, U.P. College of Engineering, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.