Shopping basket > Review order Currently in your basket Before proceeding to checkout you will need you to either login or create an account. Your items will remain in your basket. USDItem TotalThird Century of Biochemical Oxygen Demand, 2nd Edition Contents (851 words) $0.00RemoveIntegrated Approaches to Nutrient Management Planning: Southeastern Massachusetts Case Studies (11 words) $11.50RemoveEnergy in Water Resource Recovery Facilities Appendix A: Equations for Converting from U.S. Customary Units to International Standard Units (288 words) $0.00RemoveNet total: $11.50VAT: $0.00Gross total: $11.50 Payment info When you click the checkout button, you will be redirected to a secure Paypal page where you can either pay using an existing Paypal account, or pay by card without a Paypal account. Continue shopping We access Visa, Mastercard, Maestro, American Express all through Paypal.