Penggayaan APA

MARA, Duncan. (1982). Appropriate sanitation alternative for lowincome communities a brief introduction . Washington: The World Bank.

Chicago Style

MARA, Duncan. Appropriate sanitation alternative for lowincome communities a brief introduction. Washington: The World Bank, 1982. Buku.

MLA Style

MARA, Duncan. Appropriate sanitation alternative for lowincome communities a brief introduction. Washington: The World Bank, 1982. Buku.

Turabian Style

MARA, Duncan. Appropriate sanitation alternative for lowincome communities a brief introduction. Washington: The World Bank, 1982. Buku.