APA引文

Crepps, R. B., & Mills, R. E. (1923). Ball test applied to cement mortar and concrete. Bulletin / Engineering Experiment Station <West Lafayette, Ind.> 12.

Chicago Style Citation

Crepps, R. B., and R. E. Mills. "Ball Test Applied to Cement Mortar and Concrete." Bulletin / Engineering Experiment Station <West Lafayette, Ind.> 12 1923.

MLA引文

Crepps, R. B., and R. E. Mills. "Ball Test Applied to Cement Mortar and Concrete." Bulletin / Engineering Experiment Station <West Lafayette, Ind.> 12 1923.

警告：這些引文格式不一定是100％准確.