Exploration Empire. London: Kingfisher, 1991 45 p.: ill. 0-86272-757-X.
Exploration Empire. London: Kingfisher, 1991 45 p.: ill. 0-86272-757-X.
(1991) Exploration Empire, London: Kingfisher 45 p.: ill. 0-86272-757-X.
(1991). Exploration Empire. Empire-builders, European Expansion, the Development of Science, 1450 - 1760. London: Kingfisher, 45 p.: ill.
Exploration Empire: Empire-builders, European Expansion, the Development of Science, 1450 - 1760. London: Kingfisher; 1991. p. 45 p.: ill. ISBN: 0-86272-757-X.