APA (7th ed.) Citation

(1911). Gidroidy (Hydroidea). Tip. Imp. akademīi nauk.

Chicago Style (17th ed.) Citation

Gidroidy (Hydroidea). S.-Peterburg: Tip. Imp. akademīi nauk, 1911.

MLA (8th ed.) Citation

Gidroidy (Hydroidea). Tip. Imp. akademīi nauk, 1911.

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