APA aipamena

Krishna Pillai, N., & Velayudhan, S. (1981). Investment.

Chicago Style aipamena

Krishna Pillai, N., and S. Velayudhan. Investment. Thrisur, Kerala Sahitya Academy, 1981.

MLA aipamena

Krishna Pillai, N., and S. Velayudhan. Investment. 1981.