APA

Ministry of Mahawweli Development & Environment, . (2017). Preliminary Inventory of Perflurooctane Sulfonate (PFOS) and its salts in Sri Lanka - 2015. Colombo: Project on Enabling Activities to Review and Update the National Implementation Plan for the Stockholm Convention on Persistent Organic Pollutants, Ministry of Mahaweli Development and Environment.

Chicago

Ministry of Mahawweli Development & Environment, . 2017. Preliminary Inventory of Perflurooctane Sulfonate (PFOS) and its salts in Sri Lanka - 2015. Colombo: Project on Enabling Activities to Review and Update the National Implementation Plan for the Stockholm Convention on Persistent Organic Pollutants, Ministry of Mahaweli Development and Environment.

Harvard

Ministry of Mahawweli Development & Environment, . (2017). Preliminary Inventory of Perflurooctane Sulfonate (PFOS) and its salts in Sri Lanka - 2015. Colombo: Project on Enabling Activities to Review and Update the National Implementation Plan for the Stockholm Convention on Persistent Organic Pollutants, Ministry of Mahaweli Development and Environment.

MLA

Ministry of Mahawweli Development & Environment, . Preliminary Inventory of Perflurooctane Sulfonate (PFOS) and its salts in Sri Lanka - 2015. Colombo: Project on Enabling Activities to Review and Update the National Implementation Plan for the Stockholm Convention on Persistent Organic Pollutants, Ministry of Mahaweli Development and Environment. 2017.