APA (7th ed.) Citation

WORLD BOOK INT. (1991). YOUNG SCIENTIST VOL IX. WORLD BOOK INT.

Chicago Style (17th ed.) Citation

WORLD BOOK INT. YOUNG SCIENTIST VOL IX. LONDON: WORLD BOOK INT, 1991.

MLA (9th ed.) Citation

WORLD BOOK INT. YOUNG SCIENTIST VOL IX. WORLD BOOK INT, 1991.

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