APA Style

Sharma, P, C., Gopalaratnam, V, S. (1980). Ferrocement biogas holder . Thailand: internatonal ferrocemet infrmation center.

MLA Style

Sharma, P., C.., Gopalaratnam, V., S.. "Ferrocement biogas holder". Thailand: internatonal ferrocemet infrmation center, 1980. Text.