APA
Roberts T., Kaplan Irving, Lent B., Morrissey D. H., Townsend C. M. & Walpole N. F.Area handbook for Liberia. Washington, D.C: U.S. Government printing office.
Chicago
Roberts Thomas,D, Kaplan Irving, Lent Barbara, Morrissey Dennis H, Townsend Charles M and Walpole Neda Franges.Area handbook for Liberia. Washington, D.C: U.S. Government printing office.
Harvard
Roberts T., Kaplan Irving, Lent B., Morrissey D. H., Townsend C. M. and Walpole N. F.Area handbook for Liberia. Washington, D.C: U.S. Government printing office.
MLA
Roberts Thomas,D, Kaplan Irving, Lent Barbara, Morrissey Dennis H, Townsend Charles M and Walpole Neda Franges.Washington, D.C: U.S. Government printing office. .
