Levine, H. (1985). Classifying immersions into R4 over stable maps of 3-manifolds into R2. Springer-Verlag.
Cita Chicago (17th ed.)Levine, Harold. Classifying Immersions into R4 over Stable Maps of 3-manifolds into R2. Berlín: Springer-Verlag, 1985.
Cita MLA (9th ed.)Levine, Harold. Classifying Immersions into R4 over Stable Maps of 3-manifolds into R2. Springer-Verlag, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.