Lineweaver, T.H. & Backus, R.H. (1970)
The Natural History of Sharks. Philadelphia, J. B. Lippincott Company

Lineaweaver, T.H. & Backus, R.H. (1969)
The natural history of sharks. J. B. Lippencott, Philadelphia, 256 pp, ill

Garrick, J.A.F. & Backus, R.H. & Gibbs, R.H. (1964)
Carcharhinus floridanus, the silky shark, a synonym of C. falciformis. Copeia, 1964(2), 369–375

Backus, R.H. (1957)
Notes on western north Atlantic sharks. Copeia, 1957(3), 246–248

Backus, R.H. & Springer, S. & Arnold, E.L. (1956)
A contribution to the natural history of the white tip shark, Pterolamiops longimanus (Poey). Deep Sea Research, 3, 178–188