APA (7th ed.) Citation

Willems, H. P. J., & Hyppolite, G. (1981). Blasons picards. [s.n.].

Chicago Style (17th ed.) Citation

Willems, H. P. J., and G. Hyppolite. Blasons Picards. [S.l.]: [s.n.], 1981.

MLA (9th ed.) Citation

Willems, H. P. J., and G. Hyppolite. Blasons Picards. [s.n.], 1981.