Marian Rengel (2000), Encyclopedia of birth control, ISBN1-57356-255-6, Greenwood Publishing Group, ... In 1997, 36% of married women used modern contraceptives; in 1970, only 13% of married women had ...
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Wynes. «The climate mitigation gap: Education and government recommendations miss the most effective individual actions». Environmental Research Letters (em inglês). 12. 074024 páginas. ISSN1748-9326. doi:10.1088/1748-9326/aa7541