Cita APA (7th ed.)

Johannessen, B. (1999). Contracts management culvert construction works. Asian Development Bank.

Cita Chicago (17th ed.)

Johannessen, Bjórn. Contracts Management Culvert Construction Works. Phnom, Pehn: Asian Development Bank, 1999.

Cita MLA (9th ed.)

Johannessen, Bjórn. Contracts Management Culvert Construction Works. Asian Development Bank, 1999.