MLA

Smith, M.J, and J Bell. Theory of Structures; Second Edition. [S.l.]: George Godwin Limited, .

APA

Smith, M., & Bell, J. (.). Theory of structures; second edition. [S.l.]: George Godwin Limited.

Chicago

Smith, M.J., and J Bell. Theory of Structures; Second Edition. [S.l.]: George Godwin Limited, ..