Here are entered works on free diving with the use of mask, fins, and snorkel. Works on free diving with the use of a self-contained underwater breathing apparatus are entered under Scuba diving
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Free earth oscillations. : The Earth's free oscillations : formulation and solution of the fundamental wave equation of nature / Oleg V. Petrov
Free electron lasers -- Evaluation : Scientific assessment of high-power free-electron laser technology / Committee on a Scientific Assessment of Free-Electron Laser Technology for Naval Applications, Board on Physics and Astronomy, Division on Engineering and Physical Sciences, National Research Council of the National Academies
Free enterprise -- China -- Hong Kong : Innovation policy and the limits of laissez-faire : Hong Kong's policy in comparative perspective / edited by Douglas B. Fuller
Free enterprise -- Cuba : Voces de cambio en el sector no estatal cubano : cuentapropistas, usufructuarios, socios de cooperativas y compraventa de viviendas / Carmelo Mesa-Lago, coordindador ; [autores] Roberto Veiga González, Lenier González Mederos, Sofía Vera Rojas, Aníbal Pérez-Liñán
Free enterprise -- Equatorial Guinea : Republic of Equatorial Guinea : 2015 article IV consultation: press release: staff report: and statement by the Executive Director for the Republic of Equatorial Guinea