(1991). The island of oil at An̈gelsberg, the world's oldest existing oil factory: The story of "the mad farmer" who became an oil baron. Labolm, Sweden: Reproduction by reprofirman ab.

The Island of Oil At An̈gelsberg, the World's Oldest Existing Oil Factory: The Story of "the Mad Farmer" Who Became an Oil Baron. Labolm, Sweden: Reproduction by reprofirman ab, 1991.

The Island of Oil At An̈gelsberg, the World's Oldest Existing Oil Factory: The Story of "the Mad Farmer" Who Became an Oil Baron. Labolm, Sweden: Reproduction by reprofirman ab, 1991.