Columbia subject headings:
Authors, Belgian--20th century--Biography.
Authors, Belgian--21st century--Biography.
Mertens, Pierre, 1939-
Harvard subject headings:
Authors, Belgian--20th century--Biography.
Authors, Belgian--21st century--Biography.
Mertens, Pierre, 1939-
Princeton subject headings:
Authors, Belgian--20th century--Biography.
Authors, Belgian--21st century--Biography.
Mertens, Pierre, 1939-