U-boat 977 /
Schaeffer, H.
U-boat 977 / Heinz Schaeffer ; foreword by Nicholas Monsarrat. - 1st. - London : William Kimber, 1952. - 207 p. : fotos ; 23 cm.
U-boat 977 / Heinz Schaeffer ; foreword by Nicholas Monsarrat. - 1st. - London : William Kimber, 1952. - 207 p. : fotos ; 23 cm.