APA (7th ed.) Citation

(1921). Contributions towards monograph of scolytid beetles: Contents and index. GPO.

Chicago Style (17th ed.) Citation

Contributions Towards Monograph of Scolytid Beetles: Contents and Index. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

Contributions Towards Monograph of Scolytid Beetles: Contents and Index. GPO, 1921.

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