[lemma=□]
[lemma=period]
Storing paper folder documentation beyond the required retention period leads to difficulty storing folders and retrieving them at a later date , as was evidenced in this review . Readers interested in further exploration will appreciate the 120 + references to period books , magazines , CD-ROMs and Web sites . During the period from 1904 up to the Second World War , the number of students taking the degree was small , the majority registering for the shorter courses for the qualifying examinations of the Pharmaceutical Society . Since he has in these three years failed to pay his maintenance for three separate periods , it is by no means improbable that when the maintenance was not paid the wife did not appear . The 1995 Conference was specifically provided for in Article X of the Treaty : " Twenty-five years after the entry into force of the Treaty , a conference shall be convened to decide whether the Treaty shall continue in force indefinitely , or shall be extended for an additional fixed period or periods . To provide a measure of a respondent 's planning horizon , the SCF asks the following question : " In planning your family 's saving and spending , which of the time periods listed on this page is most important to you ? I feel every teen and young woman should receive this book once she starts having menstrual periods . Each item in the list must either be a single 3-digit code , or a range specified by two 3-digit codes separated by a double period ` .. In climax ecologies they are displaced by grasses on prairies or tree species and perennial shrubs in forests and , in Canada , do not survive outside of cultivation for significant periods of time .