APA

Pontificia Universidad Católica de Puerto Rico, . (1992). Program and review requirements of the 1989 amendments to the Drug Free Schools and Communities Act: Biennial review 1990-92. Ponce, P. R: Pontifical Catholic University of Puerto Rico.

Chicago

Pontificia Universidad Católica de Puerto Rico, . 1992. Program and review requirements of the 1989 amendments to the Drug Free Schools and Communities Act: Biennial review 1990-92. Ponce, P. R: Pontifical Catholic University of Puerto Rico.

Harvard

Pontificia Universidad Católica de Puerto Rico, . (1992). Program and review requirements of the 1989 amendments to the Drug Free Schools and Communities Act: Biennial review 1990-92. Ponce, P. R: Pontifical Catholic University of Puerto Rico.

MLA

Pontificia Universidad Católica de Puerto Rico, . Program and review requirements of the 1989 amendments to the Drug Free Schools and Communities Act: Biennial review 1990-92. Ponce, P. R: Pontifical Catholic University of Puerto Rico. 1992.