APA (7th ed.) Citation

SKILLING, W. T., & RICHARDSON, R. S. (1947). Astronomy.-- ed.Revisi. Henry Holt and Company.

Chicago Style (17th ed.) Citation

SKILLING, William T., and Robert S. RICHARDSON. Astronomy.-- Ed.Revisi. New York: Henry Holt and Company, 1947.

MLA (9th ed.) Citation

SKILLING, William T., and Robert S. RICHARDSON. Astronomy.-- Ed.Revisi. Henry Holt and Company, 1947.

Warning: These citations may not always be 100% accurate.