APA (7th ed.) Citation

Hals, F., & Baard, H. P. (1949). The Civic Guard portrait groups / Frans Hals, with a foreword by H. P. Baard. Elsevier.

Chicago Style (17th ed.) Citation

Hals, Frans, and H. P. Baard. The Civic Guard Portrait Groups / Frans Hals, with a Foreword by H. P. Baard. Amsterdam: Elsevier, 1949.

MLA (9th ed.) Citation

Hals, Frans, and H. P. Baard. The Civic Guard Portrait Groups / Frans Hals, with a Foreword by H. P. Baard. Elsevier, 1949.

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