Langlands , I., & Thomas , A. (1939). Handbook of structural timber design. Government Printer.
Cita Chicago (17th ed.)Langlands , Ian, i A.J Thomas. Handbook of Structural Timber Design. Melbourne: Government Printer, 1939.
Cita MLA (9th ed.)Langlands , Ian, i A.J Thomas. Handbook of Structural Timber Design. Government Printer, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.