TY - BOOK AU - Hasan,Ruqaiya AU - Fries,Peter H. TI - On subject and theme: a discourse functional perspective SN - 90-272-3621-6 PY - 1997/// CY - USA PB - John Benjamin Publishing KW - LINGUISTICA KW - CRITICA LITERARIA KW - ANALISIS DEL DISCURSO KW - INGLES N2 - ER -