APA (7th ed.) Citation

Chand, S. (1998). The history of New Horizons: 20th anniversary celebrations. [publisher not identified].

Chicago Style (17th ed.) Citation

Chand, Sonal. The History of New Horizons: 20th Anniversary Celebrations. [Place of publication not identified]: [publisher not identified], 1998.

MLA (9th ed.) Citation

Chand, Sonal. The History of New Horizons: 20th Anniversary Celebrations. [publisher not identified], 1998.