Որոնման արդյունքներ

Routledge, էջեր 159–174, ISBN 978-0-415-19655-0 Scheffler, Thomas; 2003. “ 'Fertile crescent', 'Orient', 'Middle East': the changing mental maps of Southeast...

avoid pregnancy in relation to a couple's sexual behaviour during the fertile time: a prospective longitudinal study". Hum. Reprod. 22 (5): 1310–9. doi:10...

24-ին. Վերցված է 2019 թ․ ապրիլի 20-ին. Charles Philip Issawi (1988). The Fertile Crescent, 1800–1914: A Documentary Economic History. Oxford University...

prohibition against all but "natural family planning" (abstinence during fertile periods), which many Catholics and some Protestants continue to practice...