source: Robert Henri (1960). “The art spirit”, Lippincott Williams & Wilkins
topic: Beach, Ocean, Thinking, Sea Breeze, Ocean Sea

source: John Gardner (2010). “Grendel”, p.116, Vintage

source: Helen Cresswell (1987). “Ordinary Jack: Being the First Part of the Bagthorpe Saga”, Viking Childrens Books
topic: War, Sea, History, Rendezvous, North Sea
source: Source: www.spiegel.de
source: "Fund clean energy with oil tax" by Terry Macalister, www.theguardian.com. October 22, 2006.
topic: Oil, Sea, Pay, Oil And Gas, Green Energy
topic: Running, Believe, Sea, Time Is Running Out, Oil Field
topic: Sea, Kuwait, Oil, Caspian Sea, Central Asia
source: Philip Reeve (2012). “Predator Cities x 4 and The Traction Codex”, p.13, Scholastic UK
topic: Spring, Dark, Sea, City Of London, North Sea
topic: Couple, Eye, Sea, Closed Eyes, Raspberries
topic: Commitment, Oil, Government, Westminster, City Of London