Guidelines for the cost of soil remediation projects in Guangdong province 并列题名：Guidelines for the cost of soil remediation projects in Guangdong province Guidelines for the key to the seed plants of Heishiding of Guangdong province 并列题名：Guidelines for the key to the seed plants of Heishiding of Guangdong province Guide to the design of rural highway in Guangdong province Brief information on major historic sites under national protection in Guangdong province Guide manual for scientific greening of expressway in Guangdong province research on the process of urbanization in Guangdong province Study on the rural social security system in Guangdong province 并列题名：Brief information on major historic sites under national protection in Guangdong province