Seventeen seconds
Southall, Ivan1921-
Southall, IvanSoftly tread the braveAdaptations
Leicester Knight Books
1977
This adaptation originally published: Leicester : Brockhampton Press, 1974. - Adaptation of 'Softly tread the brave'. London : Angus and Robertson, 1961
Mould, John Stuart.
Syme, Hugh Randall.
Great Britain. Royal Navy. Rendering Mines Safe Section