1977
January January; 61 (405): 1 - 117	February February; 61 (406): 1 - 109	March March; 61 (407): 1 - 125
April April; 61 (408): 1 - 126	May May; 61 (409): 1 - 141	September September; 61 (410): 1 - 127
October October; 61 (411): 1 - 126	November November; 61 (412): 1 - 142	December December; 61 (413): 1 - 118