Gaya APA
Pearce, R, D. (1990).
Mary Kingsley : light at the heart of darkness / Robert D. Pearce .
Oxford:
Kensal Press.
Gaya MLA
Pearce, Robert, D..
"Mary Kingsley : light at the heart of darkness / Robert D. Pearce".
Oxford:
Kensal Press,
1990.
Textbook.