APA (7th ed.) Citation

Macgregor, J. M. (1976). Ruler of the world. Laser Books.

Chicago Style (17th ed.) Citation

Macgregor, James Murdoch. Ruler of the World. Toronto: Laser Books, 1976.

MLA (9th ed.) Citation

Macgregor, James Murdoch. Ruler of the World. Laser Books, 1976.