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Victoria G. Christensen
Victoria G. Christensen is a geologist and a hydrologist with over 20 years of experience, who writes on a variety of scientific and engineering topics for children. She lives in F...lihat lebih banyakVictoria G. Christensen is a geologist and a hydrologist with over 20 years of experience, who writes on a variety of scientific and engineering topics for children. She lives in Fargo, North Dakota, with her husband and three great kids.lihat lebih sedikit
Buku oleh Victoria G. Christensen
How Batteries Work How Conductors Work Penilaian: 0 dari 5 bintang0 penilaianHow Sensors Work Penilaian: 0 dari 5 bintang0 penilaian