APA (7th ed.) Citation

Babcock, H. D. (1947). The solar spectrum 6600 to 13495. Carnegie Institution of Washington Publication.

Chicago Style (17th ed.) Citation

Babcock, Harold D. The Solar Spectrum 6600 to 13495. Washington, D. C: Carnegie Institution of Washington Publication, 1947.

MLA (9th ed.) Citation

Babcock, Harold D. The Solar Spectrum 6600 to 13495. Carnegie Institution of Washington Publication, 1947.

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