APA
Efron D., Annual Meeting of the American College of Neuropsychopharmacology (6th : 1967 : San Juan P. R., . (1967). Psychopharmacology : a review of progress, 1957-1967 : proceedings [of the] VIth Annual Meeting, San Juan, Puerto Rico, 12-15 December 1967. Maryland: U.S. Department of Health, Education, and Welfare.
Chicago
Efron D.H, Annual Meeting of the American College of Neuropsychopharmacology (6th : 1967 : San Juan Puerto Rico), . 1967. Psychopharmacology : a review of progress, 1957-1967 : proceedings [of the] VIth Annual Meeting, San Juan, Puerto Rico, 12-15 December 1967. Maryland: U.S. Department of Health, Education, and Welfare.
Harvard
Efron D., Annual Meeting of the American College of Neuropsychopharmacology (6th : 1967 : San Juan P. R., . (1967). Psychopharmacology : a review of progress, 1957-1967 : proceedings [of the] VIth Annual Meeting, San Juan, Puerto Rico, 12-15 December 1967. Maryland: U.S. Department of Health, Education, and Welfare.
MLA
Efron D.H, Annual Meeting of the American College of Neuropsychopharmacology (6th : 1967 : San Juan Puerto Rico), . Psychopharmacology : a review of progress, 1957-1967 : proceedings [of the] VIth Annual Meeting, San Juan, Puerto Rico, 12-15 December 1967. Maryland: U.S. Department of Health, Education, and Welfare. 1967.