Dr. Amarsinha D. Nikam. Vital Force is Oxygen. DC Books.
Chicago Edition CitationDr. Amarsinha D. Nikam. Vital Force Is Oxygen. Kottayam: DC Books.
MLA Edition CitationDr. Amarsinha D. Nikam. Vital Force Is Oxygen. DC Books.
Warning: These citations may not always be 100% accurate.