APA
Clouser J. L., . (1977). Keller plan for self paced study using masterton and slowinski's chemical principles. Philadelphia: W B Saunders.
Chicago
Clouser Joseph L, . 1977. Keller plan for self paced study using masterton and slowinski's chemical principles. Philadelphia: W B Saunders.
Harvard
Clouser J. L., . (1977). Keller plan for self paced study using masterton and slowinski's chemical principles. Philadelphia: W B Saunders.
MLA
Clouser Joseph L, . Keller plan for self paced study using masterton and slowinski's chemical principles. Philadelphia: W B Saunders. 1977.