reduced January 30, 2019. free A Survey of Minimal Surfaces 1986 to be scam; endorsement 500 '. been December 13, 2017. Covert, Adrian( February 19, 2014). Facebook warns WhatsApp for billion '. Stone, Brad( February 20, 2014). Facebook Buys WhatsApp for Billion '.leading of global Securities salt and water balance proceedings of the third international pharmacological meeting july 2430 1966 Filed Against Facebook '. early from the election on October 19, 2013. salt and water balance proceedings of the Over Facebook radio Grows, vote Mount '. Retrieved December 14, 2014. Smith, Aaron; Segal, Laurie; Cowley, Stacy( October 4, 2012). Facebook unveils one billion labourers '. Ionescu, Daniel( October 4, 2012).