APA (7th ed.) Citation

Systen. (1992). Topical revision exercises. Systen house.

Chicago Style (17th ed.) Citation

Systen. Topical Revision Exercises. Singapore: Systen house, 1992.

MLA (9th ed.) Citation

Systen. Topical Revision Exercises. Systen house, 1992.

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