H. L. Heywood has written:
'Supplement to Mackey's encyclopedia of freemasonry'
Karen L. Heywood has written: 'Hostages to fortune'
H. L. Cassard has written: '\\'
H. L. Honeyman has written: 'Northumberland'
H. L. Philbrick has written: 'The Wanderhaufen system'
L. H. A. Carp has written: 'Patents for engineers'
H. L. Savage has written: 'The Gawain-poet'
H. L. Moore has written: 'An Indian campaign'
H. L. Pirie has written: 'British coal'
L H. Levy has written: 'Conceptions of personality'
H. L. Doak has written: 'The three-rock road'
L. H. MacDaniels has written: 'A study of the Fe'i banana'
H. L. Slosson has written: 'Deep mining on the Comstock'