http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Contributions to the theory of nonlinear oscillations
Vol. 5 edited by L. Cesari, J. LaSalle, and S. Lefschetz.
Annals of mathematics studies ; 20, 29, 36, 41, 45
Annals of mathematics studies ; no. 20, etc