Cita APA (7th ed.)

(2012). Guidelines on waterproofing for rooftop greenery. Centre for Urban Greenery & Ecology.

Cita Chicago (17th ed.)

Guidelines on Waterproofing for Rooftop Greenery. Singapore: Centre for Urban Greenery & Ecology, 2012.

Cita MLA (9th ed.)

Guidelines on Waterproofing for Rooftop Greenery. Centre for Urban Greenery & Ecology, 2012.