Padmanabhan, M. (1977). Karl Marx: Jeevithakathayum pattangalum. Prabhath Book House.
Chicago Style aipamenaPadmanabhan, Muchikkal. Karl Marx: Jeevithakathayum Pattangalum. Thiruvananthapuram: Prabhath Book House, 1977.
MLA aipamenaPadmanabhan, Muchikkal. Karl Marx: Jeevithakathayum Pattangalum. Prabhath Book House, 1977.
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