Subject(s): English language -- Punctuation | English language -- Grammar

Subject(s): Marijuana -- Physiological effect | Marijuana -- Toxicology | Tetrahydrocannabinol -- pharmacology | Cannabis -- adverse effects | Cannabis -- therapeutic use | Central Nervous System -- drug effects

Subject(s): Richmond, The American International University in London -- Periodicals | Education, Higher -- Periodicals -- England | Universities and colleges -- Periodicals -- England

Subject(s): University of Bristol -- Periodicals | University of Bristol -- Handbooks, manuals, etc

Subject(s): Sufism -- Early works to 1800

Subject(s): Muslim saints | Intercession (Islam)

Subject(s): George Washington University -- Periodicals

Subject(s): Islam -- Customs and practices

Subject(s): 'Umar ibn al-Khattab, Caliph, d. 644 | Caliphs -- Biography