SUBRAMANIAN S K. (1977). BIO-GAS SYSTEMS IN ASIA. MOUGH DEV.INST.
芝加哥风格引文SUBRAMANIAN S K. BIO-GAS SYSTEMS IN ASIA. NEW DELHI: MOUGH DEV.INST, 1977.
MLA引文SUBRAMANIAN S K. BIO-GAS SYSTEMS IN ASIA. MOUGH DEV.INST, 1977.
警告：这些引文格式不一定是100％准确.
APA引文