Cita APA

Simons, E. N., & Gregory, E. (1938). The structure of steel simply explained. Blackie and son.

Citación estilo Chicago

Simons, Eric N., and Edwin Gregory. The Structure of Steel Simply Explained. London [etc.]: Blackie and son, 1938.

Cita MLA

Simons, Eric N., and Edwin Gregory. The Structure of Steel Simply Explained. Blackie and son, 1938.

Warning: These citations may not always be 100% accurate.