APA (7th ed.) Citation

Limalia, I. M., & unknown. (1991). A multi-level invariant representation of digital images.

Chicago Style (17th ed.) Citation

Limalia, Ismael Mohamed, and unknown. A Multi-level Invariant Representation of Digital Images. 1991.

MLA (9th ed.) Citation

Limalia, Ismael Mohamed, and unknown. A Multi-level Invariant Representation of Digital Images. 1991.

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