WHO. (1978). REsearch in human reproduction: Strengthening of resources in developing countries. Geneva.
Chicago-tyylinen lähdeviittausWHO. REsearch in Human Reproduction: Strengthening of Resources in Developing Countries. Geneva, 1978.
MLA-viiteWHO. REsearch in Human Reproduction: Strengthening of Resources in Developing Countries. Geneva, 1978.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.