APA (7th ed.) Citation

Sy, S. E. (1971). Introduction to computer-aided solution for shortest-route problems.

Chicago Style (17th ed.) Citation

Sy, Sun Eng. Introduction to Computer-aided Solution for Shortest-route Problems. 1971.

MLA (9th ed.) Citation

Sy, Sun Eng. Introduction to Computer-aided Solution for Shortest-route Problems. 1971.

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