APA (7th ed.) Citation

Wielen, R. (1978). Drift and broadening of ageing spiral arms. Structure and properties of nearby galaxies.

Chicago Style (17th ed.) Citation

Wielen, Roland. "Drift and Broadening of Ageing Spiral Arms." Structure and Properties of Nearby Galaxies 1978.

MLA (9th ed.) Citation

Wielen, Roland. "Drift and Broadening of Ageing Spiral Arms." Structure and Properties of Nearby Galaxies, 1978.

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