APA (7th ed.) Citation

Rombouts, a. (1991). Guidebook To Pecten Skell. Crawford House.

Chicago Style (17th ed.) Citation

Rombouts, a. Guidebook To Pecten Skell. Crawford House, 1991.

MLA (8th ed.) Citation

Rombouts, a. Guidebook To Pecten Skell. Crawford House, 1991.

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